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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-0100-normal-n10-0100-molar-m10-3145-100</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ab09f361-76ac-4209-bd11-766e7aa28714.png?v=1776329005</image:loc>
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      <image:caption>Ferrous Ammonium Sulfate, 0.100 Normal (N/10), 0.100 Molar (M/10) - 3145-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferroin-indicator-0025-molar-phenanthroline-ferrous-sulfate-complex-3140-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_6c304b68-5d59-4d3b-9e30-363b4582818a.png?v=1776329004</image:loc>
      <image:title>Ferroin Indicator, 0.025 Molar Phenanthroline Ferrous Sulfate Complex - 3140-1</image:title>
      <image:caption>Ferroin Indicator, 0.025 Molar Phenanthroline Ferrous Sulfate Complex - 3140-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/electrode-cleaning-solution-for-removal-of-membranejunction-protein-deposits-2794-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_7ffe96c9-75c7-4a00-ab5c-39db5d8fe864.png?v=1776329005</image:loc>
      <image:title>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-1</image:title>
      <image:caption>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/p-dimethylaminobenzaldehyde-solution-indicator-for-hydrazine-2555-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_e80572c5-52ed-40cb-a4bb-bf3ee2f9815a.png?v=1776329005</image:loc>
      <image:title>p-Dimethylaminobenzaldehyde Solution, Indicator for Hydrazine - 2555-16</image:title>
      <image:caption>p-Dimethylaminobenzaldehyde Solution, Indicator for Hydrazine - 2555-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/edta-titrant-0250-molar-m4-2733-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_e3f6a9f2-7bb3-4577-80a1-b428e4c4dffe.png?v=1776329009</image:loc>
      <image:title>EDTA Titrant, 0.250 Molar (M/4) - 2733-1</image:title>
      <image:caption>EDTA Titrant, 0.250 Molar (M/4) - 2733-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethyl-alcohol-standard-40-vv-r2919400-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_4e52e03d-7c9b-4516-a36f-136c18af51dc.png?v=1776329005</image:loc>
      <image:title>Ethyl Alcohol Standard, 40% (v/v) - R2919400-1A</image:title>
      <image:caption>Ethyl Alcohol Standard, 40% (v/v) - R2919400-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-0250-normal-n4-0250-molar-m4-3150-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_e7514f50-8f63-4922-ad3b-0652c0df326b.png?v=1776329006</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.250 Normal (N/4), 0.250 Molar (M/4) - 3150-2.5</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.250 Normal (N/4), 0.250 Molar (M/4) - 3150-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethyl-alcohol-standard-125-vv-r2919125-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_0909698a-2d2c-4fdc-b058-4f21f0b7be5a.png?v=1776329006</image:loc>
      <image:title>Ethyl Alcohol Standard, 12.5% (v/v) - R2919125-500A</image:title>
      <image:caption>Ethyl Alcohol Standard, 12.5% (v/v) - R2919125-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/diphenylcarbazone-xylene-cyanol-mixed-indicator-not-acidifier-for-low-level-chloride-2620-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_9dc0cf97-fa47-473b-b772-6e00829e69a4.png?v=1776329006</image:loc>
      <image:title>Diphenylcarbazone-Xylene Cyanol Mixed Indicator (not acidifier), for low level Chloride - 2620-32</image:title>
      <image:caption>Diphenylcarbazone-Xylene Cyanol Mixed Indicator (not acidifier), for low level Chloride - 2620-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-0100-normal-n10-0100-molar-m10-3145-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_c07d9d23-d941-4306-8cc9-4393c3f3a9d5.png?v=1776329003</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.100 Normal (N/10), 0.100 Molar (M/10) - 3145-2.5</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.100 Normal (N/10), 0.100 Molar (M/10) - 3145-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-000282-normal-000282-molar-1-ml-01-mg-cl-3144-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_7eb64378-cd68-40d1-a368-6fede791c4ec.png?v=1776329003</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.00282 Normal (0.00282 Molar), 1 mL = 0.1 mg Cl? - 3144-16</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.00282 Normal (0.00282 Molar), 1 mL = 0.1 mg Cl? - 3144-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/edta-0500-molar-m2-ph-80-r2736000-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_27e7d1c5-3e91-4325-addb-3719ce7bf5cd.png?v=1776329006</image:loc>
      <image:title>EDTA, 0.500 Molar (M/2), pH 8.0 - R2736000-500A</image:title>
      <image:caption>EDTA, 0.500 Molar (M/2), pH 8.0 - R2736000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/diphenylamine-03-wv-2585-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_267b858c-b437-4061-99a3-3bcbf131837c.png?v=1776329005</image:loc>
      <image:title>Diphenylamine, 0.3% (w/v) - 2585-4</image:title>
      <image:caption>Diphenylamine, 0.3% (w/v) - 2585-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-00500-normal-n20-3143-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_bc4cfa76-fbc5-409e-8928-c0d71bf1ea79.png?v=1776329008</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.0500 Normal (N/20) - 3143-16</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.0500 Normal (N/20) - 3143-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethanol-65-vv-r2919630-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_baba5a2b-9d56-43c2-a567-8803423c12e2.png?v=1776329005</image:loc>
      <image:title>Ethanol, 65% v/v - R2919630-1A</image:title>
      <image:caption>Ethanol, 65% v/v - R2919630-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ehrlich-aldehyde-reagent-wallace-diamond-formulation-for-urobilinogen-determination-2780-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_ad966c82-9676-4fe1-bf75-e3e19d663d8e.png?v=1776329005</image:loc>
      <image:title>Ehrlich Aldehyde Reagent, Wallace-Diamond Formulation, for Urobilinogen Determination - 2780-4</image:title>
      <image:caption>Ehrlich Aldehyde Reagent, Wallace-Diamond Formulation, for Urobilinogen Determination - 2780-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethyl-alcohol-standard-15-vv-r2919150-50a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_37c719c8-bde0-4428-9e6c-d6f701a72d28.png?v=1776329006</image:loc>
      <image:title>Ethyl Alcohol Standard, 15% (v/v) - R2919150-50A</image:title>
      <image:caption>Ethyl Alcohol Standard, 15% (v/v) - R2919150-50A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/p-dimethylaminobenzaldehyde-solution-indicator-for-hydrazine-2555-8</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3d4c632a-5866-4763-84dd-d0d94ae50a97.png?v=1776329007</image:loc>
      <image:title>p-Dimethylaminobenzaldehyde Solution, Indicator for Hydrazine - 2555-8</image:title>
      <image:caption>p-Dimethylaminobenzaldehyde Solution, Indicator for Hydrazine - 2555-8</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-400000-scm-400-mscm-at-25c-r2249400-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/Visual1036_816656b4-24bd-471f-975b-38694dac6744.jpg?v=1776329004</image:loc>
      <image:title>Conductivity Standard, 400,000 µS/cm (400 mS/cm) at 25°C - R2249400-500A</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/diphenylamine-1-wv-2587-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_fb4bda47-f43a-4c7e-a2fc-6417c2f2cc69.png?v=1776329011</image:loc>
      <image:title>Diphenylamine, 1% (w/v) - 2587-16</image:title>
      <image:caption>Diphenylamine, 1% (w/v) - 2587-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ethyl-alcohol-standard-15-vv-r2919150-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_5ceac42a-3ff4-4d57-af66-6c3355448779.png?v=1776329009</image:loc>
      <image:title>Ethyl Alcohol Standard, 15% (v/v) - R2919150-500A</image:title>
      <image:caption>Ethyl Alcohol Standard, 15% (v/v) - R2919150-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-0100-normal-n10-0100-molar-m10-3145-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_7dd2282e-91a6-4464-8c1c-25569cae8b58.png?v=1776329009</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.100 Normal (N/10), 0.100 Molar (M/10) - 3145-1</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.100 Normal (N/10), 0.100 Molar (M/10) - 3145-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tetrasodium-edta-10-wv-ph-74-r2743000-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_03e0e9a3-f597-44d3-865f-0b8dba926aae.png?v=1776329007</image:loc>
      <image:title>Tetrasodium EDTA, 10% (w/v), pH 7.4 - R2743000-1A</image:title>
      <image:caption>Tetrasodium EDTA, 10% (w/v), pH 7.4 - R2743000-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethylene-glycol-isopropanol-water-442-r2941400-20f</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_20f_d30133d8-6f7d-4cd4-80ce-de347fc0aae6.png?v=1776329008</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ferrous-ammonium-sulfate-00282-normal-00282-molar-1-ml-10-mg-cl2-r3144100-10f</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_dfb9e571-6315-4c0c-988b-7c92f79814a8.png?v=1776329011</image:loc>
      <image:title>Ferrous Ammonium Sulfate, 0.0282 Normal (0.0282 Molar), 1 mL = 1.0 mg Cl2 - R3144100-10F</image:title>
      <image:caption>Ferrous Ammonium Sulfate, 0.0282 Normal (0.0282 Molar), 1 mL = 1.0 mg Cl2 - R3144100-10F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/diphenylamine-1-wv-in-sulfuric-acid-2584-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c66b6610-1d78-4218-911b-58e4b837a462.png?v=1776329008</image:loc>
      <image:title>Diphenylamine, 1% (w/v) in Sulfuric Acid - 2584-16</image:title>
      <image:caption>Diphenylamine, 1% (w/v) in Sulfuric Acid - 2584-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/electrode-cleaning-solution-for-removal-of-membranejunction-protein-deposits-2794-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_8b14bd89-21cd-4438-a3cd-0d3129771832.png?v=1776329010</image:loc>
      <image:title>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-16</image:title>
      <image:caption>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/egta-solution-000500-molar-m200-1-ml-02004-mg-ca-2750-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_00d4c130-848f-41e1-90ec-bf87e7b7657f.png?v=1776329008</image:loc>
      <image:title>EGTA Solution, 0.00500 Molar (M/200) 1 mL = 0.2004 mg Ca - 2750-5</image:title>
      <image:caption>EGTA Solution, 0.00500 Molar (M/200) 1 mL = 0.2004 mg Ca - 2750-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/electrode-cleaning-solution-for-removal-of-membranejunction-protein-deposits-2794-20</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_136a5b2a-efb4-4298-af8b-288e547adc23.png?v=1776329009</image:loc>
      <image:title>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-20</image:title>
      <image:caption>Electrode Cleaning Solution, for Removal of Membrane/Junction Protein Deposits - 2794-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/diphenylcarbazone-indicator-01-wv-alcoholic-solution-2600-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_c0cdcb3f-6232-4f88-a86b-03160f9e930f.png?v=1776329056</image:loc>
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      <image:caption>Fluoride Standard, 100 ppm F? - 3171-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/edta-titrant-000100-molar-m1000-1-ml-01-mg-caco-004-mg-ca-2692-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>EDTA Titrant, 0.00100 Molar (M/1000), 1 mL = 0.1 mg CaCO? (0.04 mg Ca) - 2692-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_0fe3b251-0922-49c4-b9ce-6605142bb892.png?v=1776329054</image:loc>
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      <image:caption>EDTA Titrant, 0.0100 Molar (M/100) - 2700-32</image:caption>
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    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_b7b1b5fc-4b01-478d-a82e-ebf39cffae98.png?v=1776329057</image:loc>
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      <image:caption>EDTA Titrant, 0.0100 Molar (M/100) - 2700-5</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ferric-chloride-10-wv-3120-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_ce61f9f6-73ce-4520-a9cd-65d0f5c43327.png?v=1776329056</image:loc>
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      <image:caption>Ferric Chloride, 10% (w/v) - 3120-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ep-reference-solution-gy-greenish-yellow-reference-solution-28812-32</loc>
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      <image:title>EP Reference Solution GY?, Greenish-Yellow Reference Solution - 2881.2-32</image:title>
      <image:caption>EP Reference Solution GY?, Greenish-Yellow Reference Solution - 2881.2-32</image:caption>
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      <image:caption>EP Reference Solution GY?, Greenish-Yellow Reference Solution - 2881.3-32</image:caption>
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      <image:caption>EP Reference Solution R?, Red Reference Solution - 2882.4-4</image:caption>
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  <url>
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      <image:caption>EDTA Titrant, 0.0125 Molar - R2700125-20F</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>EP Reference Solution R?, Red Reference Solution - 2882.3-32</image:title>
      <image:caption>EP Reference Solution R?, Red Reference Solution - 2882.3-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/fluoride-standard-05-ppm-f-31655-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Fluoride Standard, 0.5 ppm F? - 3165.5-1</image:title>
      <image:caption>Fluoride Standard, 0.5 ppm F? - 3165.5-1</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrochloric-acid-5-vv-3568-32</loc>
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    <changefreq>daily</changefreq>
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  <url>
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      <image:title>EP Reference Solution R?, Red Reference Solution - 2882.6-32</image:title>
      <image:caption>EP Reference Solution R?, Red Reference Solution - 2882.6-32</image:caption>
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    <loc>https://labproinc2.myshopify.com/products/edta-titrant-00100-molar-m100-2700-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>EDTA Titrant, 0.0100 Molar (M/100) - 2700-16</image:caption>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:caption>Fluoboric Acid, 20% (v/v) - R3174950-500A</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Ferric Chloride CS, USP / EP Yellow Primary Solution 1 mL = 45.0 mg FeCl?·6H?O - 3110-4</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/edta-titrant-000500-molar-m200-2697-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>EDTA Titrant, 0.00500 Molar (M/200) - 2697-16</image:caption>
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    <loc>https://labproinc2.myshopify.com/products/ep-reference-solution-gy-greenish-yellow-reference-solution-28816-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:title>EP Reference Solution GY?, Greenish-Yellow Reference Solution - 2881.6-32</image:title>
      <image:caption>EP Reference Solution GY?, Greenish-Yellow Reference Solution - 2881.6-32</image:caption>
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    <loc>https://labproinc2.myshopify.com/products/fluoride-standard-200-ppm-f-r3171200-120a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Fluoride Standard, 200 ppm F? - R3171200-120A</image:caption>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_9946082b-f272-4ef7-9de4-42df326cb8a9.png?v=1776329070</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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    <loc>https://labproinc2.myshopify.com/products/formaldehyde-10-vv-non-buffered-histological-fixative-3180-16</loc>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:title>EP Reference Solution R?, Red Reference Solution - 2882.3-4</image:title>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Gold Chloride, 1% (w/v) 100 mL = 1 g HAuCl?·3H?O, 1 mL = 5 mg Au, Toner for Gomori Methenamine Silver Nitrate Stain - 3295-16</image:caption>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Hydrochloric Acid, 0.200 Normal (N/5) in Isopropyl Alcohol - 3802-32</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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      <image:caption>Hydrochloric Acid / FeCl2  80 g/L each - R3750800-20F</image:caption>
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  </url>
  <url>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:title>Hydrochloric Acid, 6.00 Normal, from NF/ USP materials - R3750200-500A</image:title>
      <image:caption>Hydrochloric Acid, 6.00 Normal, from NF/ USP materials - R3750200-500A</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Gardner Color Standard #14 - 3226.14-100</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrochloric-acid-500-normal-3740-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_10f_aad267f2-c118-4a6e-9aa4-486ce5c98607.png?v=1776329153</image:loc>
      <image:title>Hydrochloric Acid, 5.00 Normal - 3740-2.5</image:title>
      <image:caption>Hydrochloric Acid, 5.00 Normal - 3740-2.5</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Gardner Color Standard #17 - 3226.17-16</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Iodine Tincture, 5% (w/v) - R3957000-500C</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Iodide-Iodate, 0.003175 Normal (N/315) - 3960-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrochloric-acid-0100-normal-n10-in-isopropyl-alcohol-3800-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_73ff7f03-e62c-4f91-80fb-3491f1956368.png?v=1776329152</image:loc>
      <image:title>Hydrochloric Acid, 0.100 Normal (N/10) in Isopropyl Alcohol - 3800-1</image:title>
      <image:caption>Hydrochloric Acid, 0.100 Normal (N/10) in Isopropyl Alcohol - 3800-1</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrochloric-acid-600-normal-from-nf-usp-materials-r3750200-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Hydrochloric Acid, 6.00 Normal, from NF/ USP materials - R3750200-1A</image:caption>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrochloric-acid-0250-normal-n4-in-isopropyl-alcohol-3803-1</loc>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3158ce01-52c2-4d7f-9fb7-0d666cf5d38b.png?v=1776329174</image:loc>
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      <image:caption>Malic Acid Standard, 300 ppm C?H?O? in 10% (v/v) Ethanol - R4583030-100A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_20f_304b9661-7049-4fd9-b401-c635c068ec36.png?v=1776329173</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Gentian Violet, Hucker Formulation, for Gram Staining - 3240-1</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Hydrochloric Acid, 12.0 Normal - 3780-32</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_8206abc5-347a-4ff4-bed3-41d55893ff41.png?v=1776329179</image:loc>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_d112aa36-05f1-4733-a953-ea8b5495d0c2.png?v=1776329175</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_929e5d19-8358-4f31-86c2-7cc9b79e9406.png?v=1776329246</image:loc>
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  <url>
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      <image:caption>Mercuric Nitrate, 0.100 Molar (M/10), 0.200 Normal (N/5) - 4745-32</image:caption>
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  <url>
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  </url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-standard-100-ppm-hg-4795-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/methylene-blue-01-wv-4841-1</loc>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mercuric-thiocyanate-stock-solution-417-gl-in-methanol-4785-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/methanol-10-vv-hplc-grade-4815-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdovanadate-reagent-traacs-5208-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methanesulfonic-acid-04-molar-4813-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methylene-blue-ts-005-wv-alcoholic-4862-4</loc>
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      <image:caption>Methylene Blue TS, 0.05% (w/v) Alcoholic - 4862-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/isopropyl-alcohol-10-vv-4207-5hp</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5191b466-d2af-453d-be6b-6c7b09f17b81.png?v=1776329278</image:loc>
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      <image:caption>Isopropyl Alcohol, 10% (v/v) - 4207-5HP</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methanol-50-vv-4820-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Methylene Blue, 1% (w/v) in Denatured Alcohol - 4864-4</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-dilute-r-125-gl-hno-5330-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Nitric Acid, 20% (v/v) in Methanol - R5326500-20F</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Nitric Acid, Dilute R (125 g/L HNO?) - 5330-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_f0f08e9a-fb61-4326-9256-52ec35d3119a.png?v=1776329294</image:loc>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Methyl Orange Indicator, 0.1% (w/v) - 5000-32</image:title>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_1ef55137-154e-4eff-9511-5131c498a520.png?v=1776329299</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-standard-30-ppm-mo-r5196300-500n</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_6dd341de-2321-45d3-b293-e1f489fbcd49.png?v=1776329299</image:loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/oxalic-acid-10-wv-5470-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_c5fda049-d23f-4465-96b7-7ccc836441c2.png?v=1776329300</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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  <url>
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  <url>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-chloride-30-wv-technical-grade-r5290000-4a</loc>
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  <url>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-100-ppm-no-5444-16</loc>
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    <changefreq>daily</changefreq>
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      <image:caption>Nitrite Standard, 100 ppm NO?? - 5444-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-200-normal-5432-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/perchloric-acid-0010-molar-m100-aqueous-r5513300-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-orange-indicator-02-wv-5020-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-600-normal-5440-5pt</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1d594f46-049f-4155-8435-b9a00d23e76f.png?v=1776329343</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_f612830f-cc8a-408b-9f33-4c7fc731c342.png?v=1776329345</image:loc>
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      <image:caption>Papanicolaou Stain, EA-65 Formula Counterstain for use with Hematoxylin Stains in Papanicolaou Staining - 5505-1</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Perchloric Acid, 0.01 Normal (N/100) in Dioxane - R5513500-500C</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitrate Standard, 10,000 ppm NO?? (2260 ppm N) - 5304-16</image:title>
      <image:caption>Nitrate Standard, 10,000 ppm NO?? (2260 ppm N) - 5304-16</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>Nickel Sulfate, 0.0500 Molar - R5302550-1A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrate-nitrogen-standard-1000-ppm-n-4427-ppm-no-r5307900-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - R5307900-500A</image:title>
      <image:caption>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - R5307900-500A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrate-standard-75-ppm-no-r5307075-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Nitrate Standard, 1000 ppm NO?? (226 ppm N) - 5307-4</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrate-standard-500-ppm-no-53075-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitrate Standard, 500 ppm NO?? - 5307.5-4</image:title>
      <image:caption>Nitrate Standard, 500 ppm NO?? - 5307.5-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-500-ppm-no-15225-ppm-n-54445-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitrite Standard, 500 ppm NO?? (152.25 ppm N) - 5444.5-4</image:title>
      <image:caption>Nitrite Standard, 500 ppm NO?? (152.25 ppm N) - 5444.5-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/papanicolaou-stain-og-6-formula-modified-counterstain-for-use-with-hematoxylin-stains-in-papanicolaou-staining-5510-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_9a025aee-441d-4dce-902b-86f72a7ac613.png?v=1776329353</image:loc>
      <image:title>Papanicolaou Stain, OG-6 Formula, Modified Counterstain for use with Hematoxylin Stains in Papanicolaou Staining - 5510-1</image:title>
      <image:caption>Papanicolaou Stain, OG-6 Formula, Modified Counterstain for use with Hematoxylin Stains in Papanicolaou Staining - 5510-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-025-wv-5521-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_664b1d64-5d1f-4750-b647-0dcc736c37c3.png?v=1776329347</image:loc>
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      <image:caption>1,10-Phenanthroline, 0.25% (w/v) - 5521-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/perchloric-acid-00100-normal-n100-in-glacial-acetic-acid-5513-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_964e0656-d204-4aaf-bed1-9c45acc44aca.png?v=1776329347</image:loc>
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      <image:caption>Perchloric Acid, 0.0100 Normal (N/100) in Glacial Acetic Acid - 5513-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_099b7592-7059-43d2-9418-8b01120eab36.png?v=1776329351</image:loc>
      <image:title>Perchloric Acid, 0.100 Normal (N/10) in Glacial Acetic Acid - 5515-16</image:title>
      <image:caption>Perchloric Acid, 0.100 Normal (N/10) in Glacial Acetic Acid - 5515-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_3dd9d084-a343-4149-b602-9da0bbc65dbf.png?v=1776329347</image:loc>
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      <image:caption>Perchloric Acid, 0.100 Normal (N/10) in Glacial Acetic Acid - 5515-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/papanicolaou-stain-ea-36-50-formula-counterstain-for-use-with-hematoxylin-stains-in-papanicolaou-staining-5500-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_41931cff-8ec0-4746-82ef-8b521ec32c09.png?v=1776329350</image:loc>
      <image:title>Papanicolaou Stain, EA-36-50 Formula Counterstain for use with Hematoxylin Stains in Papanicolaou Staining - 5500-16</image:title>
      <image:caption>Papanicolaou Stain, EA-36-50 Formula Counterstain for use with Hematoxylin Stains in Papanicolaou Staining - 5500-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-hydrofluoric-acid-blend-11-r5443700-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_de5a3906-3477-41d4-ae01-9fa0d4730578.png?v=1776329350</image:loc>
      <image:title>Nitric Acid - Hydrofluoric Acid Blend, 1:1 - R5443700-1A</image:title>
      <image:caption>Nitric Acid - Hydrofluoric Acid Blend, 1:1 - R5443700-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-1-trace-metals-grade-r5311000-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_9ab87bf1-c0ca-499c-8413-b7589ef89204.png?v=1776329350</image:loc>
      <image:title>Nitric Acid, 1%, Trace Metals Grade - R5311000-500A</image:title>
      <image:caption>Nitric Acid, 1%, Trace Metals Grade - R5311000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-2-vv-in-denatured-ethanol-r5314100-4a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_d3c71f95-c181-40eb-893d-c7dbe596392a.png?v=1776329351</image:loc>
      <image:title>Nitric Acid, 2% (v/v) in Denatured Ethanol - R5314100-4A</image:title>
      <image:caption>Nitric Acid, 2% (v/v) in Denatured Ethanol - R5314100-4A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/perchloric-acid-0100-normal-n10-in-glacial-acetic-acid-5515-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4c_e42ee065-7c4c-45d1-b79c-464fc2da8d26.png?v=1776329349</image:loc>
      <image:title>Perchloric Acid, 0.100 Normal (N/10) in Glacial Acetic Acid - 5515-1</image:title>
      <image:caption>Perchloric Acid, 0.100 Normal (N/10) in Glacial Acetic Acid - 5515-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-1000-ppm-no-3045-ppm-n-5445-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-4</image:title>
      <image:caption>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-01-wv-5520-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_17758100-63ec-4d1f-be3c-8bd2cf1b3c07.png?v=1776329356</image:loc>
      <image:title>1,10-Phenanthroline, 0.1% (w/v) - 5520-32</image:title>
      <image:caption>1,10-Phenanthroline, 0.1% (w/v) - 5520-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrification-inhibitor-r5443990-500c2</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b559945a-814e-4c0a-93b4-d68ccc15be4c.png?v=1776329352</image:loc>
      <image:title>Nitrification Inhibitor - R5443990-500C2</image:title>
      <image:caption>Nitrification Inhibitor - R5443990-500C2</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/michels-fixative-r5111000-100a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a86779d6-2571-4372-bbea-c74eb1afca97.png?v=1776329350</image:loc>
      <image:title>Michel&apos;s Fixative - R5111000-100A</image:title>
      <image:caption>Michel&apos;s Fixative - R5111000-100A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonia-nitrogen-standard-10-ppm-n-122-ppm-nh-5450-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_540d0605-bc6f-453c-9013-2784b194101b.png?v=1776329357</image:loc>
      <image:title>Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-1</image:title>
      <image:caption>Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-violet-indicator-002-wv-5100-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_fc968508-9264-4d87-b957-5b60d921c912.png?v=1776329352</image:loc>
      <image:title>Methyl Violet Indicator, 0.02% (w/v) - 5100-16</image:title>
      <image:caption>Methyl Violet Indicator, 0.02% (w/v) - 5100-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nital-etchant-2-vv-in-alcohol-r5314300-250a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c14a7818-cb73-4515-8623-54e4e839f42a.png?v=1776329355</image:loc>
      <image:title>Nital Etchant, 2% (v/v) in Alcohol - R5314300-250A</image:title>
      <image:caption>Nital Etchant, 2% (v/v) in Alcohol - R5314300-250A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/perchloric-acid-00500-normal-n20-in-glacial-acetic-acid-r5514050-500c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_48de1f85-45ed-46b0-bda6-fcbb33fc033b.png?v=1776329354</image:loc>
      <image:title>Perchloric Acid, 0.0500 Normal (N/20) in Glacial Acetic Acid - R5514050-500C</image:title>
      <image:caption>Perchloric Acid, 0.0500 Normal (N/20) in Glacial Acetic Acid - R5514050-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ninhydrin-035-wv-in-isopropyl-alcohol-r5309350-120c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120c_4eba30a2-2930-4e8c-b857-640107b11eb6.png?v=1776329353</image:loc>
      <image:title>Ninhydrin, 0.35% (w/v) in Isopropyl Alcohol - R5309350-120C</image:title>
      <image:caption>Ninhydrin, 0.35% (w/v) in Isopropyl Alcohol - R5309350-120C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrification-inhibitor-r5443990-50b1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5e248e1f-31b4-4d77-aa13-5e35b1ebc8c5.png?v=1776329355</image:loc>
      <image:title>Nitrification Inhibitor - R5443990-50B1</image:title>
      <image:caption>Nitrification Inhibitor - R5443990-50B1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-methylene-blue-ts-alcoholic-mixed-indicator-5090-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_a41f4933-be56-4667-bd41-4c956c30815c.png?v=1776329354</image:loc>
      <image:title>Methyl Red-Methylene Blue TS, Alcoholic Mixed Indicator - 5090-16</image:title>
      <image:caption>Methyl Red-Methylene Blue TS, Alcoholic Mixed Indicator - 5090-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-methylene-blue-ts-alcoholic-mixed-indicator-5090-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120a_14ad456f-50be-4b4e-b25a-d3dcf36bd01e.png?v=1776329352</image:loc>
      <image:title>Methyl Red-Methylene Blue TS, Alcoholic Mixed Indicator - 5090-4</image:title>
      <image:caption>Methyl Red-Methylene Blue TS, Alcoholic Mixed Indicator - 5090-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-1000-ppm-no-3045-ppm-n-5445-8</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_766e7ffc-33cb-4d39-9d1f-90456639a547.png?v=1776329357</image:loc>
      <image:title>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-8</image:title>
      <image:caption>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-8</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nital-etchant-2-vv-in-alcohol-r5314300-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Nital Etchant, 2% (v/v) in Alcohol - R5314300-1C</image:title>
      <image:caption>Nital Etchant, 2% (v/v) in Alcohol - R5314300-1C</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-137-ww-r5314500-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_c9d18e29-3117-4b46-a12d-fe9174392af8.png?v=1776329353</image:loc>
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      <image:caption>Nitric acid, 1.37% (w/w) - R5314500-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-indicator-002-wv-5050-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b92355b2-0185-45da-ae12-b873b8a1b0c3.png?v=1776329356</image:loc>
      <image:title>Methyl Red Indicator, 0.02% (w/v) - 5050-32</image:title>
      <image:caption>Methyl Red Indicator, 0.02% (w/v) - 5050-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ninhydrin-solution-r-5309-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_2a797fca-6b7b-4f80-be7b-e584e11d4068.png?v=1776329361</image:loc>
      <image:title>Ninhydrin Solution R - 5309-16</image:title>
      <image:caption>Ninhydrin Solution R - 5309-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-01-wv-alcoholic-55205-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_bf3f103e-02a0-468e-8862-5b9d634817ec.png?v=1776329357</image:loc>
      <image:title>1,10-Phenanthroline, 0.1% (w/v) Alcoholic - 5520.5-16</image:title>
      <image:caption>1,10-Phenanthroline, 0.1% (w/v) Alcoholic - 5520.5-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-02-wv-in-isopropyl-alcohol-r5165a00-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_ce9ebae6-ea0c-41ca-ad6e-0004aa9f4553.png?v=1776329359</image:loc>
      <image:title>Methyl Red, 0.2% (w/v) in Isopropyl Alcohol - R5165A00-500A</image:title>
      <image:caption>Methyl Red, 0.2% (w/v) in Isopropyl Alcohol - R5165A00-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ph-51-indicator-methyl-red-bromocresol-purple-r5565000-120a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120a_d00bc833-b080-4bc5-a9b1-503f5366c253.png?v=1776329360</image:loc>
      <image:title>pH 5.1 Indicator, Methyl Red-Bromocresol Purple - R5565000-120A</image:title>
      <image:caption>pH 5.1 Indicator, Methyl Red-Bromocresol Purple - R5565000-120A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-03-wv-5522-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_7bd2cefd-b281-401e-94b2-5a42f8da80d1.png?v=1776329355</image:loc>
      <image:title>1,10-Phenanthroline, 0.3% (w/v) - 5522-32</image:title>
      <image:caption>1,10-Phenanthroline, 0.3% (w/v) - 5522-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/periodic-acid-05-wv-in-80-vv-acetic-acid-r5518500-4c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4c_5c5d511c-eb99-4fc6-a4f3-d7db3261b923.png?v=1776329358</image:loc>
      <image:title>Periodic Acid, 0.5% (w/v) in 80% (v/v) Acetic Acid - R5518500-4C</image:title>
      <image:caption>Periodic Acid, 0.5% (w/v) in 80% (v/v) Acetic Acid - R5518500-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonia-nitrogen-standard-10-ppm-n-122-ppm-nh-5450-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-16</image:title>
      <image:caption>Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-05-aqueous-r5594000-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_285b2749-5ded-439a-933e-48f15d4efca4.png?v=1776329358</image:loc>
      <image:title>Phenolphthalein, 0.5% Aqueous - R5594000-1C</image:title>
      <image:caption>Phenolphthalein, 0.5% Aqueous - R5594000-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-standard-500-ppm-alkalinity125-ppm-chloride-aqueous-5175-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b3cb9952-5f8c-4962-ae7d-5d06f9d6dd99.png?v=1776329355</image:loc>
      <image:title>Mixed Standard, 500 ppm Alkalinity/125 ppm Chloride, Aqueous - 5175-32</image:title>
      <image:caption>Mixed Standard, 500 ppm Alkalinity/125 ppm Chloride, Aqueous - 5175-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-100-ppm-no-5444-8</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2324bc6b-e56f-4271-b16f-40efc264d674.png?v=1776329353</image:loc>
      <image:title>Nitrite Standard, 100 ppm NO?? - 5444-8</image:title>
      <image:caption>Nitrite Standard, 100 ppm NO?? - 5444-8</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mobile-phase-hexaneethyl-etherisopropyl-alcohol-r5181100-4c1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cb101014-b628-480f-8557-4e76e8f6a6c3.png?v=1776329357</image:loc>
      <image:title>Mobile Phase: Hexane/Ethyl Ether/Isopropyl Alcohol - R5181100-4C1</image:title>
      <image:caption>Mobile Phase: Hexane/Ethyl Ether/Isopropyl Alcohol - R5181100-4C1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-violet-indicator-002-wv-5100-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_e1183fd1-8293-4ccc-99d5-17d7c6ed7259.png?v=1776329355</image:loc>
      <image:title>Methyl Violet Indicator, 0.02% (w/v) - 5100-32</image:title>
      <image:caption>Methyl Violet Indicator, 0.02% (w/v) - 5100-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/papanicolaou-stain-gills-modified-ea-formula-acidified-cytoplasmic-counterstain-for-use-with-hematoxylin-stains-5511-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_6004e1f6-ae6d-4484-a2b1-24c301969935.png?v=1776329356</image:loc>
      <image:title>Papanicolaou Stain, Gill&apos;s Modified EA Formula Acidified Cytoplasmic Counterstain for use with Hematoxylin Stains - 5511-16</image:title>
      <image:caption>Papanicolaou Stain, Gill&apos;s Modified EA Formula Acidified Cytoplasmic Counterstain for use with Hematoxylin Stains - 5511-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-indicator-solution-methyl-red-methylene-blue-5164-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_740d1ec0-2f75-474d-8cf0-61fa6427d605.png?v=1776329357</image:loc>
      <image:title>Mixed Indicator Solution, Methyl Red-Methylene Blue - 5164-16</image:title>
      <image:caption>Mixed Indicator Solution, Methyl Red-Methylene Blue - 5164-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-acid-10-vv-hydrofluoric-acid-10-vv-nitric-acid-r5151300-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_1f97f866-4079-45a0-8735-f1feb72383c4.png?v=1776329358</image:loc>
      <image:title>Mixed Acid, 10% (v/v) Hydrofluoric Acid / 10% (v/v) Nitric Acid - R5151300-1A</image:title>
      <image:caption>Mixed Acid, 10% (v/v) Hydrofluoric Acid / 10% (v/v) Nitric Acid - R5151300-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonia-nitrogen-standard-2500-ppm-n-3040-ppm-nh-r5455300-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ammonia Nitrogen Standard, 2500 ppm N (3040 ppm NH?) - R5455300-500A</image:title>
      <image:caption>Ammonia Nitrogen Standard, 2500 ppm N (3040 ppm NH?) - R5455300-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-01-wv-in-methanol-r5595100-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_9331f89c-43e7-4df1-baf1-b6420fa2230f.png?v=1776329357</image:loc>
      <image:title>Phenolphthalein, 0.1% (w/v) in Methanol - R5595100-1A</image:title>
      <image:caption>Phenolphthalein, 0.1% (w/v) in Methanol - R5595100-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-03-vv-5308-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_50b0a54d-385c-4fda-8c0a-b077cc425010.png?v=1776329359</image:loc>
      <image:title>Nitric Acid, 0.3% (v/v) - 5308-16</image:title>
      <image:caption>Nitric Acid, 0.3% (v/v) - 5308-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrate-nitrogen-standard-1000-ppm-n-4427-ppm-no-r5307900-120a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_569390a0-e057-4078-a5f5-ac17128885f0.png?v=1776329361</image:loc>
      <image:title>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - R5307900-120A</image:title>
      <image:caption>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - R5307900-120A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdate-reagent-5189-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_7323058a-488a-4d7a-9c7f-9d9dcc125818.png?v=1776329357</image:loc>
      <image:title>Molybdate Reagent - 5189-1</image:title>
      <image:caption>Molybdate Reagent - 5189-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitrite-standard-1000-ppm-no-3045-ppm-n-5445-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_c80141c7-2399-4a6a-84b7-840cc1705bb4.png?v=1776329363</image:loc>
      <image:title>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-16</image:title>
      <image:caption>Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-1-vv-r5313000-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_fe179ce4-4ce4-4d92-ab43-b44fce3488f8.png?v=1776329358</image:loc>
      <image:title>Nitric Acid, 1% (v/v) - R5313000-1A</image:title>
      <image:caption>Nitric Acid, 1% (v/v) - R5313000-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-01-wv-5520-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_e3e75fd9-7371-4184-a3af-27625b8c69cb.png?v=1776329359</image:loc>
      <image:title>1,10-Phenanthroline, 0.1% (w/v) - 5520-16</image:title>
      <image:caption>1,10-Phenanthroline, 0.1% (w/v) - 5520-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdate-reagent-taylor-type-12-wv-sodium-molybdate-in-49-vv-sulfuric-acid-5190-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_bfb07bd2-a06a-47bd-a62d-c66fba2aa794.png?v=1776329361</image:loc>
      <image:title>Molybdate Reagent, Taylor Type, 1.2% (w/v) Sodium Molybdate in 4.9% (v/v) Sulfuric Acid - 5190-1</image:title>
      <image:caption>Molybdate Reagent, Taylor Type, 1.2% (w/v) Sodium Molybdate in 4.9% (v/v) Sulfuric Acid - 5190-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-03-vv-5308-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_3ff6e4d7-a22f-46e4-abc9-80240b068ad3.png?v=1776329363</image:loc>
      <image:title>Nitric Acid, 0.3% (v/v) - 5308-32</image:title>
      <image:caption>Nitric Acid, 0.3% (v/v) - 5308-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-01-wv-5520-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_df35b516-18ad-4e29-bc9e-d8bcf641e13b.png?v=1776329360</image:loc>
      <image:title>1,10-Phenanthroline, 0.1% (w/v) - 5520-4</image:title>
      <image:caption>1,10-Phenanthroline, 0.1% (w/v) - 5520-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonia-nitrogen-standard-100-ppm-n-122-ppm-nh-5453-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_06273efc-5904-4854-a50b-ee04d404bf4a.png?v=1776329364</image:loc>
      <image:title>Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-4</image:title>
      <image:caption>Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-008-wv-in-methanol-5595-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:title>5 mM Sodium Phosphate, 5%v/v Acetonitrile, pH 3.00 - R5181400-1C</image:title>
      <image:caption>5 mM Sodium Phosphate, 5%v/v Acetonitrile, pH 3.00 - R5181400-1C</image:caption>
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  <url>
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      <image:title>Ammonia Nitrogen Standard, 50 ppm N (60.8 ppm NH?) - 5452-1</image:title>
      <image:caption>Ammonia Nitrogen Standard, 50 ppm N (60.8 ppm NH?) - 5452-1</image:caption>
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      <image:title>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-4</image:title>
      <image:caption>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-4</image:caption>
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      <image:title>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-32</image:title>
      <image:caption>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdate-reagent-taylor-type-12-wv-sodium-molybdate-in-49-vv-sulfuric-acid-5190-5</loc>
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      <image:caption>Molybdate Reagent, Taylor Type, 1.2% (w/v) Sodium Molybdate in 4.9% (v/v) Sulfuric Acid - 5190-5</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-05-wv-in-50-vv-alcohol-neutralized-5600-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-32</image:title>
      <image:caption>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-32</image:caption>
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  <url>
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      <image:title>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-16</image:title>
      <image:caption>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-5-vv-5318-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitric Acid, 5% (v/v) - 5318-5</image:title>
      <image:caption>Nitric Acid, 5% (v/v) - 5318-5</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-acid-solution-r5147000-1c1</loc>
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      <image:title>Mixed Acid Solution - R5147000-1C1</image:title>
      <image:caption>Mixed Acid Solution - R5147000-1C1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/modified-davidsons-fixative-ii-5187-55</loc>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-55e_a28f0ae2-0c34-4055-91b9-7491ab3fa1f2.png?v=1776329370</image:loc>
      <image:title>Modified Davidson&apos;s Fixative II - 5187-55</image:title>
      <image:caption>Modified Davidson&apos;s Fixative II - 5187-55</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonia-nitrogen-standard-100-ppm-n-122-ppm-nh-5453-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-16</image:title>
      <image:caption>Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-5-vv-in-denatured-ethanol-53181-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitric Acid, 5% (v/v) in denatured Ethanol - 5318.1-32</image:title>
      <image:caption>Nitric Acid, 5% (v/v) in denatured Ethanol - 5318.1-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-008-wv-in-methanol-5595-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 0.08% (w/v) in Methanol - 5595-16</image:title>
      <image:caption>Phenolphthalein Indicator, 0.08% (w/v) in Methanol - 5595-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-10-vv-5320-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitric Acid, 10% (v/v) - 5320-16</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitric Acid, 5% (v/v) - 5318-16</image:title>
      <image:caption>Nitric Acid, 5% (v/v) - 5318-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nonaqueous-buffer-stock-solution-a-for-acid-number-of-petroleum-products-5462-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Nonaqueous Buffer Stock Solution A, for Acid Number of Petroleum Products - 5462-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-solution-r-01-wv-in-80-vv-alcohol-5598-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_62a22a2b-e224-4a3d-ad5c-c9c0e3cbc404.png?v=1776329370</image:loc>
      <image:title>Phenolphthalein Solution R, 0.1% (w/v) in 80% (v/v) Alcohol - 5598-32</image:title>
      <image:caption>Phenolphthalein Solution R, 0.1% (w/v) in 80% (v/v) Alcohol - 5598-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-05-aqueous-r5594000-500c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_37582714-afce-4cbd-8e0b-6746cc77fcce.png?v=1776329371</image:loc>
      <image:title>Phenolphthalein, 0.5% Aqueous - R5594000-500C</image:title>
      <image:caption>Phenolphthalein, 0.5% Aqueous - R5594000-500C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-05-wv-in-50-vv-alcohol-neutralized-5600-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120a_aac77d2c-0f2c-4267-b095-d5e21bda7389.png?v=1776329374</image:loc>
      <image:title>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-4</image:title>
      <image:caption>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-3-vv-r5316000-4a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_8a38dc43-475b-4da0-b0e5-9d3af3b5774e.png?v=1776329372</image:loc>
      <image:title>Nitric Acid, 3% (v/v) - R5316000-4A</image:title>
      <image:caption>Nitric Acid, 3% (v/v) - R5316000-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-01-wv-alcoholic-55205-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_7377c4f0-e6be-4f73-afe4-bbded7e167dd.png?v=1776329371</image:loc>
      <image:title>1,10-Phenanthroline, 0.1% (w/v) Alcoholic - 5520.5-32</image:title>
      <image:caption>1,10-Phenanthroline, 0.1% (w/v) Alcoholic - 5520.5-32</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-indicator-002-wv-in-methanol-5080-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_64ddfa54-6679-4ec7-a47e-0b632868b369.png?v=1776329371</image:loc>
      <image:title>Methyl Red Indicator, 0.02% (w/v) in Methanol - 5080-32</image:title>
      <image:caption>Methyl Red Indicator, 0.02% (w/v) in Methanol - 5080-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/110-phenanthroline-03-wv-5522-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_41a6c537-25ca-48c8-a3da-495dd02ea17e.png?v=1776329374</image:loc>
      <image:title>1,10-Phenanthroline, 0.3% (w/v) - 5522-16</image:title>
      <image:caption>1,10-Phenanthroline, 0.3% (w/v) - 5522-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_8f0792b3-7d9d-44b0-8872-54ca16636fc7.png?v=1776329376</image:loc>
      <image:title>Phenolphthalein, 1% (w/v) in 58% (v/v) Alcohol - R5614000-1A</image:title>
      <image:caption>Phenolphthalein, 1% (w/v) in 58% (v/v) Alcohol - R5614000-1A</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_8eaa664b-7417-4c33-97b7-e36286791c25.png?v=1776329376</image:loc>
      <image:title>Phenolphthalein, 0.2% (w/v) in denatured Ethanol - R5597000-500A</image:title>
      <image:caption>Phenolphthalein, 0.2% (w/v) in denatured Ethanol - R5597000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-05-wv-in-methanol-r5595500-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein, 0.5% (w/v) in Methanol - R5595500-500A</image:title>
      <image:caption>Phenolphthalein, 0.5% (w/v) in Methanol - R5595500-500A</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ammonia Nitrogen Standard, 500 ppm N (608 ppm NH?) - R5454000-500A</image:title>
      <image:caption>Ammonia Nitrogen Standard, 500 ppm N (608 ppm NH?) - R5454000-500A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-1</image:title>
      <image:caption>Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-1</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Modified Davidson&apos;s Fixative II - 5187-16</image:title>
      <image:caption>Modified Davidson&apos;s Fixative II - 5187-16</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nital Etchant, 3% (v/v) in Reagent Alcohol - R5316200-1C</image:title>
      <image:caption>Nital Etchant, 3% (v/v) in Reagent Alcohol - R5316200-1C</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Phenolphthalein, 0.1% (w/v) in 50% (v/v) Methanol - R5604000-20F</image:caption>
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  <url>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-4</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-4</image:caption>
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      <image:caption>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-1</image:caption>
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      <image:title>Nonaqueous Buffer Stock Solution B for Acid Number and Neutralization Number of Petroleum Products - 5463-32</image:title>
      <image:caption>Nonaqueous Buffer Stock Solution B for Acid Number and Neutralization Number of Petroleum Products - 5463-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - 5459-16</image:title>
      <image:caption>Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - 5459-16</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in Methanol, Neutralized - 5621-5</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in Methanol, Neutralized - 5621-5</image:caption>
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  <url>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-1</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-1</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein, 1% (w/v) in 50% (v/v) Isopropyl Alcohol Neutralized - 5625-60</image:title>
      <image:caption>Phenolphthalein, 1% (w/v) in 50% (v/v) Isopropyl Alcohol Neutralized - 5625-60</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Nonaqueous Buffer Stock Solution B for Acid Number and Neutralization Number of Petroleum Products - 5463-16</image:title>
      <image:caption>Nonaqueous Buffer Stock Solution B for Acid Number and Neutralization Number of Petroleum Products - 5463-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in Methanol, Neutralized - 5621-32</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in Methanol, Neutralized - 5621-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-10-vv-5320-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_503c1f2d-5591-443d-ab1e-e9e005dc8b2d.png?v=1776329386</image:loc>
      <image:title>Nitric Acid, 10% (v/v) - 5320-1</image:title>
      <image:caption>Nitric Acid, 10% (v/v) - 5320-1</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-32</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-200-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-54645-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-32</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_240a0e41-02e9-4e01-90c5-5c14f9a4fccf.png?v=1776329390</image:loc>
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      <image:caption>Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-32</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_88a72e9c-9d60-4547-b684-687da41b51c2.png?v=1776329387</image:loc>
      <image:title>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-1</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-1-wv-in-70-vv-alcohol-neutralized-5618-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_842d5ab0-5489-4d67-bee6-c655337556f3.png?v=1776329391</image:loc>
      <image:title>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-32</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-5-vv-in-methanol-r5318200-25d</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4b38f98d-2922-4564-8c03-4dd6e99db2ce.png?v=1776329386</image:loc>
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      <image:caption>Nitric Acid, 5% (v/v) in Methanol - R5318200-2.5D</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_f9b4ed5b-3925-4666-90e0-df40e265bd06.png?v=1776329388</image:loc>
      <image:title>Nitric Acid, 10% (v/v) - 5320-32</image:title>
      <image:caption>Nitric Acid, 10% (v/v) - 5320-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-1-wv-in-70-vv-alcohol-neutralized-5618-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_20f_c08a0d93-7b63-47a8-bad9-bf449dffc0f3.png?v=1776329386</image:loc>
      <image:title>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-5</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nonaqueous-buffer-stock-solution-a-for-acid-number-of-petroleum-products-5462-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_e72b4920-e5c4-4c26-86d9-47f0fa595bb5.png?v=1776329392</image:loc>
      <image:title>Nonaqueous Buffer Stock Solution A, for Acid Number of Petroleum Products - 5462-32</image:title>
      <image:caption>Nonaqueous Buffer Stock Solution A, for Acid Number of Petroleum Products - 5462-32</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-05-wv-in-50-vv-methanol-neutralized-5605-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_b43a34a2-4c98-4a30-8d41-a663ee000257.png?v=1776329390</image:loc>
      <image:title>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Methanol, Neutralized - 5605-32</image:title>
      <image:caption>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Methanol, Neutralized - 5605-32</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_24c2d3f2-05f6-47ec-80fd-cc4852a8681b.png?v=1776329387</image:loc>
      <image:title>Nitric Acid, 14% (w/w) - R5323500-500C</image:title>
      <image:caption>Nitric Acid, 14% (w/w) - R5323500-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-143-vv-r5323600-100a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f3e98437-5b1c-4932-acf2-2e832153eb4a.png?v=1776329391</image:loc>
      <image:title>Nitric Acid, 14.3% (v/v) - R5323600-100A</image:title>
      <image:caption>Nitric Acid, 14.3% (v/v) - R5323600-100A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-200-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-54645-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_39297599-01b5-4961-9cc6-bbd1824749ce.png?v=1776329396</image:loc>
      <image:title>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-5</image:title>
      <image:caption>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_20f_f4d4ee9b-21f4-4d73-88fc-e81412d10570.png?v=1776329386</image:loc>
      <image:title>Nitric Acid, 5% (v/v) in denatured Ethanol - 5318.1-5</image:title>
      <image:caption>Nitric Acid, 5% (v/v) in denatured Ethanol - 5318.1-5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_b1f703b1-356b-474b-beca-3c8bd0dc1afb.png?v=1776329391</image:loc>
      <image:title>Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-4</image:title>
      <image:caption>Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-4</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_94f7119d-9d93-423f-9a74-6ee575777e96.png?v=1776329387</image:loc>
      <image:title>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-5</image:title>
      <image:caption>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120a_c9328324-cd35-4f83-b388-836415bd975f.png?v=1776329391</image:loc>
      <image:title>Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized - 5625.6-4</image:title>
      <image:caption>Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized - 5625.6-4</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_908e6c22-15d9-4f7e-aac9-e692481a527e.png?v=1776329392</image:loc>
      <image:title>Nitrate Standard, 1000 ppm NO?? (226 ppm N) - 5458-16</image:title>
      <image:caption>Nitrate Standard, 1000 ppm NO?? (226 ppm N) - 5458-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-10-vv-5320-5hp</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f5d68f1b-be3a-4537-8ac2-3f3724c291e3.png?v=1776329389</image:loc>
      <image:title>Nitric Acid, 10% (v/v) - 5320-5HP</image:title>
      <image:caption>Nitric Acid, 10% (v/v) - 5320-5HP</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-1</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized - 5618-16</image:caption>
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  <url>
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      <image:caption>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-1</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Nital Etchant, 10% (v/v) Nitric Acid in Reagent Alcohol - R5323000-1A</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phenolphthalein, 0.5% (w/v) in 50% (v/v) Isopropyl Alcohol - 5625.5-16</image:caption>
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      <image:caption>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-2.5</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_11ca1774-bd78-49bf-912a-548542636edf.png?v=1776329395</image:loc>
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      <image:caption>Phenolphthalein, 0.1% (w/v) in 50% (v/v) Isopropyl Alcohol Neutralized - R5625100-1A</image:caption>
    </image:image>
  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Nital Etchant, 10% (v/v) Nitric Acid in Reagent Alcohol - R5323000-4A</image:title>
      <image:caption>Nital Etchant, 10% (v/v) Nitric Acid in Reagent Alcohol - R5323000-4A</image:caption>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_20f_74654f3b-349a-4d57-ae37-183d42392e78.png?v=1776329396</image:loc>
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      <image:caption>Nitric Acid, 9% (v/v) - R5319600-20F</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-16</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in 95% (v/v) Alcohol, Neutralized - 5620-16</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_961c4818-965e-4862-9d35-789343c637cc.png?v=1776329398</image:loc>
      <image:title>Phenolphthalein Indicator, 1% (w/v) in Pyridine - 5627-16</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in Pyridine - 5627-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_bcdb85f7-76e8-4345-a2ab-6b6646f66981.png?v=1776329398</image:loc>
      <image:title>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-16</image:title>
      <image:caption>Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Alcohol, Neutralized - 5600-16</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-15-vv-5324-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/orthophenanthroline-ts-0025-m-phenanthroline-ferrous-sulfate-54648-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Orthophenanthroline TS, 0.025 M Phenanthroline Ferrous Sulfate - 5464.8-16</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_2e468d0c-e028-4bce-9977-3374b20bcbdf.png?v=1776329396</image:loc>
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      <image:caption>Phenolphthalein, 0.5% (w/v) in 50% (v/v) Isopropyl Alcohol - 5625.5-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-1-wv-in-pyridine-5627-100</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_90975377-3df8-462e-96dd-2202d4c49b51.png?v=1776329399</image:loc>
      <image:title>Phenolphthalein Indicator, 1% (w/v) in Pyridine - 5627-100</image:title>
      <image:caption>Phenolphthalein Indicator, 1% (w/v) in Pyridine - 5627-100</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-1-wv-in-60-vv-isopropyl-alcohol-neutralized-56256-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_84008a85-2c7d-4ef6-a259-98463af68922.png?v=1776329397</image:loc>
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      <image:caption>Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized - 5625.6-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-1-in-50-denatured-ethanol-r5622100-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phenolphthalein, 1% in 50% denatured Ethanol - R5622100-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nuclear-fast-red-solution-r5463200-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Nuclear Fast Red Solution - R5463200-500A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-450-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-r5464545-500c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_ac4853ff-a944-4222-8e0a-b49d58443876.png?v=1776329402</image:loc>
      <image:title>ORP Standard, +450 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - R5464545-500C</image:title>
      <image:caption>ORP Standard, +450 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - R5464545-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-indicator-1-wv-in-methanol-neutralized-5621-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:caption>Phenolphthalein, 1% (w/v) in 50% (v/v) Isopropyl Alcohol Neutralized - 5625-1</image:caption>
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  <url>
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      <image:caption>Nitric Acid, 5% (v/v) in Methanol - R5318200-500A</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>Phenolphthalein, 0.1% (w/v) in 50% (v/v) Isopropyl Alcohol Neutralized - R5625100-500A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phosphate Buffered Saline, 1X - Non-sterile - R5819000-1A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-200-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-54645-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_411e3024-b5a1-41ce-8c71-25d8b46fe4f1.png?v=1776329403</image:loc>
      <image:title>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-16</image:title>
      <image:caption>ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phenol Red Indicator, 0.1% (w/v) - R5720100-500A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cc4e6b66-be0f-4186-992d-ab6e26ddb529.png?v=1776329400</image:loc>
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      <image:caption>Nitric Acid, 14.3% (v/v) - R5323600-250A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_a68f54ed-076c-4eac-839f-55f53e8df7d6.png?v=1776329398</image:loc>
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      <image:caption>Nital Etch, 3% (v/v) Nitric Acid in Methanol - R5316400-1C</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-1-wv-in-isopropyl-alcohol-r5626000-120a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120a_0004c2ba-a827-49ca-bd42-cf06f29a1a30.png?v=1776329400</image:loc>
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      <image:caption>Phenolphthalein, 1% (w/v) in Isopropyl Alcohol - R5626000-120A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenol-stock-standard-500-005-wv-5738-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_f28ed46d-58fd-4742-96bc-86352ad6a38f.png?v=1776329402</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-16</image:title>
      <image:caption>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-16</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Phenol Stock Standard, 5.00 ± 0.05% (w/v) - 5738-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_a65ff04b-f312-4dbe-b865-97e51b998309.png?v=1776329397</image:loc>
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      <image:caption>Phosphate Standard, 0.5 ppm PO4 - R5826050-1A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>ORP Standard, +400 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - R5464540-500C</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ph-47-phenol-red-ts-5721-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>pH 4.7 Phenol Red TS - 5721-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-2-in-95etoh-r5630000-500c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_b857fd57-ba05-4d93-8f09-f8c0834054cb.png?v=1776329401</image:loc>
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      <image:caption>Phenolphthalein, 2% in 95%EtOH - R5630000-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenol-red-indicator-002-wv-5700-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_138332f4-599e-4390-862b-2ecc513a0f98.png?v=1776329401</image:loc>
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      <image:caption>Phenol Red Indicator, 0.02% (w/v) - 5700-4</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a5de7e15-6504-4f52-a889-afc5bfe6c631.png?v=1776329402</image:loc>
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      <image:caption>Phenol Stock Standard, 5.00 ± 0.05% (w/v) - 5738-32SC</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenol-red-ts-01-wv-alcoholic-5723-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_8f998424-cea2-4a36-a5dd-84c0c1649131.png?v=1776329403</image:loc>
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      <image:caption>Phenol Red TS, 0.1% (w/v) Alcoholic - 5723-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-bromide-40-g-100-ml-water-5880-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Potassium Bromide, 40 g + 100 mL Water - 5880-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-600-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-54646-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_a5a57d60-a950-4eb7-8e9e-bfa8c061e17c.png?v=1776329409</image:loc>
      <image:title>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-2.5</image:title>
      <image:caption>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-2.5</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-bromate-rv-ep-primary-standard-58794-500</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a87e9d8a-ef0a-47d3-bab4-0e5135be4a00.png?v=1776329403</image:loc>
      <image:title>Potassium Bromate RV, EP Primary Standard - 5879.4-500</image:title>
      <image:caption>Potassium Bromate RV, EP Primary Standard - 5879.4-500</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenol-red-ts-01-wv-alcoholic-5723-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120c_fc97740b-7b7e-4342-9558-f5769a2540ef.png?v=1776329408</image:loc>
      <image:title>Phenol Red TS, 0.1% (w/v) Alcoholic - 5723-4</image:title>
      <image:caption>Phenol Red TS, 0.1% (w/v) Alcoholic - 5723-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/orp-standard-600-mv-vs-agagcl-4m-kcl-sat-with-agcl-filling-solution-54646-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_2d62aade-4984-4ed3-b0bf-22382a61cb90.png?v=1776329402</image:loc>
      <image:title>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-4</image:title>
      <image:caption>ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nitric-acid-10-vv-in-methanol-r5320100-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_f001ead6-9a0d-4342-9a3e-c595e4932dcd.png?v=1776329406</image:loc>
      <image:title>Nitric Acid, 10% (v/v) in Methanol - R5320100-1A</image:title>
      <image:caption>Nitric Acid, 10% (v/v) in Methanol - R5320100-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-biiodate-00282-normal-000235-molar-1000-ppm-as-cl-5877-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_89e6a93c-f6e8-4066-9ff6-745e3699adbe.png?v=1776329408</image:loc>
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      <image:caption>Potassium Biiodate, 0.0282 Normal (0.00235 Molar), 1000 ppm as Cl? - 5877-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-1-wv-in-60-vv-isopropyl-alcohol-neutralized-56256-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_08550e17-ef58-4a34-b95c-13fbbbdca493.png?v=1776329402</image:loc>
      <image:title>Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized - 5625.6-16</image:title>
      <image:caption>Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized - 5625.6-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffered-saline-085-nacl-ph-700-720-r5823900-10f</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_2fe1e660-c533-4f53-8b0e-ebff908a5b10.png?v=1776329414</image:loc>
      <image:title>Phosphate Buffered Saline, 0.85% NaCl, pH 7.00-7.20 - R5823900-10F</image:title>
      <image:caption>Phosphate Buffered Saline, 0.85% NaCl, pH 7.00-7.20 - R5823900-10F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-standard-1-ppm-po-58261-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_8fcc1276-22c8-4f61-9de7-a99484c67a55.png?v=1776329405</image:loc>
      <image:title>Phosphate Standard, 1 ppm PO?³? - 5826.1-16</image:title>
      <image:caption>Phosphate Standard, 1 ppm PO?³? - 5826.1-16</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_7218d277-0236-42cb-ae7e-6f4d56e5048b.png?v=1776329404</image:loc>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>Phosphate Buffered Saline, 0.85% NaCl, pH 7.00-7.20 - R5823900-20F</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenylarsine-oxide-pao-titrant-000500-normal-n200-5749-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4c_7b9215fc-354e-4f05-8742-ead4379e3b99.png?v=1776329407</image:loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-1-in-50-denatured-ethanol-r5622100-4a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_b5270410-6c34-4f75-a0f3-ffc16aa15aec.png?v=1776329406</image:loc>
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      <image:caption>Phenolphthalein, 1% in 50% denatured Ethanol - R5622100-4A</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_01853f56-8074-4a86-bd07-59c0b9c08376.png?v=1776329404</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_6741238f-043c-46ec-942a-e38cad7c9522.png?v=1776329406</image:loc>
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      <image:caption>Phosphate Buffered Saline, 0.9% (w/v), pH 7.40 at 25°C - 5817-5</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenylarsine-oxide-pao-titrant-00250-normal-n40-stabilized-5755-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1c_9a946f6a-e30b-47db-823a-c38d32c7bbcf.png?v=1776329412</image:loc>
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      <image:caption>Phenylarsine Oxide (PAO) Titrant, 0.0250 Normal (N/40), Stabilized - 5755-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_bf85b0fc-a2dc-4a70-9b75-1f793021c330.png?v=1776329407</image:loc>
      <image:title>Phenol Red Indicator, 0.04% (w/v) - 5720-4</image:title>
      <image:caption>Phenol Red Indicator, 0.04% (w/v) - 5720-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenol-sodium-pentacyanonitrosylferrate-iii-ts-jp-r5735000-500b</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500b_2e5d18d1-e3b4-447f-bfb2-65bd113588ce.png?v=1776329407</image:loc>
      <image:title>Phenol-Sodium Pentacyanonitrosylferrate (III) TS, JP - R5735000-500B</image:title>
      <image:caption>Phenol-Sodium Pentacyanonitrosylferrate (III) TS, JP - R5735000-500B</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phenolphthalein-tsrs-1-wv-alcoholic-5622-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_f9e0ba77-8a93-4f94-942b-712f4c3ca3ec.png?v=1776329411</image:loc>
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      <image:caption>Phenol Standard, 1000 ppm C?H?OH (0.100% (w/w)) - 5740-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500c_c1a98a0a-3f04-4302-bd8d-99d999387ea3.png?v=1776329407</image:loc>
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      <image:caption>Phenylarsine Oxide (PAO) Titrant, 0.0250 Normal (N/40), Stabilized - 5755-16</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-standard-05-ppm-po4-r5826050-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phenosafranin, 0.1% (w/v) in Isopropyl Alcohol - R5742000-500C</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Phosphate Buffer, 0.020 Molar, pH 2.5 - R5787020-4C</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 1413 µS/cm at 25°C - R5888141-4A</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 1413 µS/cm at 25°C - R5888141-4A</image:caption>
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      <image:caption>Potassium Chloride Conductivity Standard, 20,000 µS/cm (20 mS/cm) at 25°C - 5888.20-5</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 25 µS/cm at 25°C - R5885250-500A</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 50,000 µS/cm (50 mS/cm) at 25°C - 5889-2.5</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 50,000 µS/cm (50 mS/cm) at 25°C - 5889-2.5</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 12.9 µS/cm at 25°C - 5885.13-32</image:title>
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      <image:caption>Potassium Chloride Conductivity Standard, 50,000 µS/cm (50 mS/cm) at 25°C - 5889-32</image:caption>
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      <image:caption>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-2.5</image:caption>
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  <url>
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      <image:title>Potassium Chloride Conductivity Standard, 80,000 µS/cm (80 mS/cm) at 25°C - R5888800-500A</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 80,000 µS/cm (80 mS/cm) at 25°C - R5888800-500A</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-5</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-5</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 58,700 µS/cm (58.7 mS/cm) at 25°C - 5889.1-16</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 58,700 µS/cm (58.7 mS/cm) at 25°C - 5889.1-16</image:caption>
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      <image:title>Phosphate Buffer, 0.10 Molar, pH 6.20 - 5799.2-5</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-16</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-16</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C - R5889300-20F</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C - R5889300-20F</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 100 µS/cm at 25°C - 5887-2.5</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 100 µS/cm at 25°C - 5887-2.5</image:caption>
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      <image:title>Potassium Chloride Conductivity Standard, 25 µS/cm at 25°C - R5885250-1A</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 50 µS/cm at 25°C - 5886.5-16</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C - 5888.6-32</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 50,000 µS/cm (50 mS/cm) at 25°C - 5889-5</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 50 µS/cm at 25°C - 5886.5-5</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C - R5889300-10F</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 100 µS/cm at 25°C - 5887-5</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C - R5889300-1A</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 80,000 µS/cm (80 mS/cm) at 25°C - R5888800-1A</image:title>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 58,640 µS/cm (58.64 mS/cm) at 25°C - 5889.15-5</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 58,640 µS/cm (58.64 mS/cm) at 25°C - 5889.15-5</image:caption>
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  <url>
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      <image:title>Phosphate Buffer, pH 7, for Residual Chlorine and Chlorine Dioxide (Amperometric) - 5803-1</image:title>
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      <image:title>Potassium Chloride, 0.0100 Molar (M/100), 1412 µS/cm at 25°C - 5890-16</image:title>
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  <url>
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  <url>
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      <image:title>Potassium Chloride Reference Solution B, 12,856 µS/cm at 25°C, 0.1 Molar - 5894-32</image:title>
      <image:caption>Potassium Chloride Reference Solution B, 12,856 µS/cm at 25°C, 0.1 Molar - 5894-32</image:caption>
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  <url>
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      <image:title>Potassium Chloride Conductivity Standard, 500 µS/cm at 25°C - 5887.5-5</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 84 µS/cm at 25°C - 5886.84-32</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 84 µS/cm at 25°C - 5886.84-32</image:caption>
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      <image:caption>Potassium Chloride Conductivity Standard, 50 µS/cm at 25°C - 5886.5-2.5</image:caption>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:caption>Potassium Chloride Reference Solution C, 1408.8 µS/cm at 25°C, 0.01 Molar - 5895-2.5</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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      <image:title>Phosphate Buffer, 0.1 Molar, pH 7.2 - 5811-5</image:title>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 200 µS/cm at 25°C - R5887280-1A</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 447 µS/cm at 25°C - 5887.47-16</image:title>
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      <image:title>Potassium Chloride Conductivity Standard, 389 µS/cm at 25°C (200 ppm TDS as KCl) - R5887389-500A</image:title>
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      <image:caption>Phosphate Buffer, pH 7, for Water Reaction in Aviation Fuel - 5808.20-5</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-reference-solution-a-111342-scm-at-25c-1-molar-5893-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_fba023e2-6e49-4a86-928a-c4d279f5fc18.png?v=1776329477</image:loc>
      <image:title>Potassium Chloride Reference Solution A, 111,342 µS/cm at 25°C, 1 Molar - 5893-32</image:title>
      <image:caption>Potassium Chloride Reference Solution A, 111,342 µS/cm at 25°C, 1 Molar - 5893-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-conductivity-standard-500-scm-at-25c-58875-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_1b8f4174-ba19-4c85-9f48-6476760f7589.png?v=1776329479</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 500 µS/cm at 25°C - 5887.5-16</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 500 µS/cm at 25°C - 5887.5-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-4-molar-saturated-with-silver-chloride-electrode-filling-solution-5920-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_b1915f2d-ac6e-4f0d-a67d-8f6386e36298.png?v=1776329479</image:loc>
      <image:title>Potassium Chloride, 4 Molar, saturated with Silver Chloride, Electrode Filling Solution - 5920-4</image:title>
      <image:caption>Potassium Chloride, 4 Molar, saturated with Silver Chloride, Electrode Filling Solution - 5920-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffer-ph-7-for-water-reaction-in-aviation-fuel-580820-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_8d15d0ae-54f5-47c8-ac73-f144fd18efc9.png?v=1776329480</image:loc>
      <image:title>Phosphate Buffer, pH 7, for Water Reaction in Aviation Fuel - 5808.20-32</image:title>
      <image:caption>Phosphate Buffer, pH 7, for Water Reaction in Aviation Fuel - 5808.20-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-reference-solution-a-111342-scm-at-25c-1-molar-5893-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_ee23cf39-222f-4f3c-bd06-69a326e6ceef.png?v=1776329482</image:loc>
      <image:title>Potassium Chloride Reference Solution A, 111,342 µS/cm at 25°C, 1 Molar - 5893-16</image:title>
      <image:caption>Potassium Chloride Reference Solution A, 111,342 µS/cm at 25°C, 1 Molar - 5893-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-reference-solution-b-12856-scm-at-25c-01-molar-5894-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_754fb60a-114d-4ab2-96c3-27c3f09346a5.png?v=1776329481</image:loc>
      <image:title>Potassium Chloride Reference Solution B, 12,856 µS/cm at 25°C, 0.1 Molar - 5894-16</image:title>
      <image:caption>Potassium Chloride Reference Solution B, 12,856 µS/cm at 25°C, 0.1 Molar - 5894-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-conductivity-standard-750-scm-at-25c-588775-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_518d4099-b047-4240-afb5-c858c878187f.png?v=1776329484</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 750 µS/cm at 25°C - 5887.75-32</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 750 µS/cm at 25°C - 5887.75-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-phosphorus-standard-100-ppm-p-3066-ppm-po-58565-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_f6efc852-6a28-4d68-a711-2d105f41c2c5.png?v=1776329482</image:loc>
      <image:title>Phosphate Phosphorus Standard, 100 ppm P (306.6 ppm PO?³?) - 5856.5-4</image:title>
      <image:caption>Phosphate Phosphorus Standard, 100 ppm P (306.6 ppm PO?³?) - 5856.5-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-standard-500-ppm-p-r5857005-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_a0a3d956-619b-41d5-bc21-2759d622038b.png?v=1776329482</image:loc>
      <image:title>Phosphorus Standard, 500 ppm P - R5857005-500A</image:title>
      <image:caption>Phosphorus Standard, 500 ppm P - R5857005-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-conductivity-standard-147-scm-at-25c-58872-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_7227f082-65f9-4130-96f3-84e079e6c749.png?v=1776329481</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 147 µS/cm at 25°C - 5887.2-32</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 147 µS/cm at 25°C - 5887.2-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-reference-solution-c-14088-scm-at-25c-001-molar-5895-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_1b5cb04b-622f-4562-99ed-c8e7dc9cb833.png?v=1776329486</image:loc>
      <image:title>Potassium Chloride Reference Solution C, 1408.8 µS/cm at 25°C, 0.01 Molar - 5895-32</image:title>
      <image:caption>Potassium Chloride Reference Solution C, 1408.8 µS/cm at 25°C, 0.01 Molar - 5895-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffer-005-molar-ph-72-5806-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_665993fd-4443-4b1c-9cda-3b686e821268.png?v=1776329484</image:loc>
      <image:title>Phosphate Buffer, 0.05 Molar, pH 7.2 - 5806-5</image:title>
      <image:caption>Phosphate Buffer, 0.05 Molar, pH 7.2 - 5806-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffer-01-molar-ph-740-r5811400-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_1d5325dc-3ec5-430c-8bab-726e837b0447.png?v=1776329485</image:loc>
      <image:title>Phosphate Buffer, 0.1 Molar, pH 7.40 - R5811400-1A</image:title>
      <image:caption>Phosphate Buffer, 0.1 Molar, pH 7.40 - R5811400-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloroplatinate-02-wv-in-10-vv-hydrochloric-acid-5950-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_7507888b-f934-4822-ae47-79f5f774c7ca.png?v=1776329485</image:loc>
      <image:title>Potassium Chloroplatinate, 0.2% (w/v) in 10% (v/v) Hydrochloric Acid - 5950-16</image:title>
      <image:caption>Potassium Chloroplatinate, 0.2% (w/v) in 10% (v/v) Hydrochloric Acid - 5950-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-200-molar-58992-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_6a10a6ad-78b8-4ed9-ae4c-a5b9bcb5f0a8.png?v=1776329485</image:loc>
      <image:title>Potassium Chloride, 2.00 Molar - 5899.2-1</image:title>
      <image:caption>Potassium Chloride, 2.00 Molar - 5899.2-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-conductivity-standard-1015-scm-at-25c-r5888012-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_7adc5fdc-17a8-4787-a9a8-e07d9cf65a97.png?v=1776329485</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 1015 µS/cm at 25°C - R5888012-1A</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 1015 µS/cm at 25°C - R5888012-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-standard-10-ppb-10-gl-p-r5856100-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_88ce67b3-e56f-4183-b11a-85fedebf0356.png?v=1776329486</image:loc>
      <image:title>Phosphorus Standard, 10 ppb (10 µg/L) P - R5856100-1A</image:title>
      <image:caption>Phosphorus Standard, 10 ppb (10 µg/L) P - R5856100-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-reference-solution-d-14693-scm-at-25c-0001-molar-5896-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_6cd5d646-5c2d-4201-97d5-a73817d8fac2.png?v=1776329486</image:loc>
      <image:title>Potassium Chloride Reference Solution D, 146.93 µS/cm at 25°C, 0.001 Molar - 5896-32</image:title>
      <image:caption>Potassium Chloride Reference Solution D, 146.93 µS/cm at 25°C, 0.001 Molar - 5896-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/picric-acid-saturated-approximately-12-wv-5860-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_9eddc5fe-89cb-4e2c-860c-f66b067d3936.png?v=1776329488</image:loc>
      <image:title>Picric Acid, Saturated, approximately 1.2% (w/v) - 5860-16</image:title>
      <image:caption>Picric Acid, Saturated, approximately 1.2% (w/v) - 5860-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffer-50mmph-80-r5812700-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_929cbe28-e7ce-46ea-9a49-cbfbc7ae44be.png?v=1776329486</image:loc>
      <image:title>Phosphate Buffer, 50mM/pH 8.0 - R5812700-500A</image:title>
      <image:caption>Phosphate Buffer, 50mM/pH 8.0 - R5812700-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/picric-acid-acetone-for-brown-brinn-r5861100-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_e9248db5-ad4f-445f-9f3c-e3273682af69.png?v=1776329491</image:loc>
      <image:title>Picric Acid-Acetone, for Brown &amp; Brinn - R5861100-500A</image:title>
      <image:caption>Picric Acid-Acetone, for Brown &amp; Brinn - R5861100-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-acid-phthalate-standard-1000-ppm-chemical-oxygen-demand-cod-5868-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_21fad679-3caa-4c0b-bccc-a2dca77e4a13.png?v=1776329485</image:loc>
      <image:title>Potassium Acid Phthalate Standard, 1000 ppm Chemical Oxygen Demand (COD) - 5868-16</image:title>
      <image:caption>Potassium Acid Phthalate Standard, 1000 ppm Chemical Oxygen Demand (COD) - 5868-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-0100-molar-m10-5891-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_1c787d53-bdf0-4255-bd00-674acf132b69.png?v=1776329488</image:loc>
      <image:title>Potassium Chloride, 0.100 Molar (M/10) - 5891-32</image:title>
      <image:caption>Potassium Chloride, 0.100 Molar (M/10) - 5891-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-00200-normal-n50-r5891020-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_46555e44-cf39-4843-aa9f-6c721865f630.png?v=1776329488</image:loc>
      <image:title>Potassium Chloride, 0.0200 Normal (N/50) - R5891020-1A</image:title>
      <image:caption>Potassium Chloride, 0.0200 Normal (N/50) - R5891020-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/picric-acid-4-in-methanol-r5860540-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_27fcf646-76c7-42ce-bf64-33894635384f.png?v=1776329489</image:loc>
      <image:title>Picric Acid, 4% in Methanol - R5860540-1C</image:title>
      <image:caption>Picric Acid, 4% in Methanol - R5860540-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-std-1-ppm-p-r5856401-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_32a913a8-fa44-4839-a46c-6dbb70de9cfe.png?v=1776329489</image:loc>
      <image:title>Phosphorus Std, 1 ppm P - R5856401-500A</image:title>
      <image:caption>Phosphorus Std, 1 ppm P - R5856401-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-0500-molar-m2-5898-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_f59f40d6-d454-476a-adde-f9897a23d42a.png?v=1776329488</image:loc>
      <image:title>Potassium Chloride, 0.500 Molar (M/2) - 5898-16</image:title>
      <image:caption>Potassium Chloride, 0.500 Molar (M/2) - 5898-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-saturated-approximately-4-molar-5900-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_8d9e2e26-9f32-4cb9-9edb-4ed26bff7a49.png?v=1776329492</image:loc>
      <image:title>Potassium Chloride, Saturated, approximately 4 Molar - 5900-1</image:title>
      <image:caption>Potassium Chloride, Saturated, approximately 4 Molar - 5900-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-acetate-ts-10-wv-5866-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_a4ca834f-72fb-423a-842a-2544e0efe6fc.png?v=1776329491</image:loc>
      <image:title>Potassium Acetate TS, 10% (w/v) - 5866-16</image:title>
      <image:caption>Potassium Acetate TS, 10% (w/v) - 5866-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-conductivity-standard-717-scm-at-25c-588772-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_c64e8533-a799-43f0-a1b4-91d11f22988a.png?v=1776329492</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 717 µS/cm at 25°C - 5887.72-32</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 717 µS/cm at 25°C - 5887.72-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphate-buffer-01-molar-ph-740-r5811405-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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      <image:title>Potassium Chloride Conductivity Standard, 7000 µS/cm at 25°C - 5888.07-1</image:title>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride, 4 Molar, saturated with Silver Chloride, Electrode Filling Solution - 5920-1</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Dichromate, 0.500 Normal (N/2) - 6074-32</image:title>
      <image:caption>Potassium Dichromate, 0.500 Normal (N/2) - 6074-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_073082e6-3886-4359-98a2-2a9df30b3a84.png?v=1776329505</image:loc>
      <image:title>Potassium Acid Phthalate, 0.0500 Normal (N/20) - 5870-16</image:title>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_557f7cdf-248e-4929-90b2-ef33f55bfd2d.png?v=1776329503</image:loc>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Potassium Dichromate, 0.250 Normal (N/4), 0.04167 Molar (M/24) - 6070-16</image:title>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_27e59041-418d-4582-a1d1-1ba94fa80cef.png?v=1776329509</image:loc>
      <image:title>Potassium Chromate, 5% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6000-32</image:title>
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  <url>
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    <changefreq>daily</changefreq>
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    </image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Antimonyl Tartrate, 0.2743% (w/v)  (1.3715 g/500 mL) - 5872-32</image:title>
      <image:caption>Potassium Antimonyl Tartrate, 0.2743% (w/v)  (1.3715 g/500 mL) - 5872-32</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_c9ba28c2-b95a-4c74-a52a-ab19b2be4501.png?v=1776329504</image:loc>
      <image:title>Potassium Dichromate, 4% (w/v) - R6042800-500A</image:title>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Potassium Chromate TS, 10% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6005-32</image:title>
      <image:caption>Potassium Chromate TS, 10% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6005-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_f63bd3ff-e055-421c-aff8-b4312b778277.png?v=1776329508</image:loc>
      <image:title>Potassium Biiodate, 0.0250 Normal, 0.002083 Molar - 5875-16</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chromate TS, 10% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6005-16</image:title>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_1986ebef-e269-49e2-8569-da633d2609e2.png?v=1776329506</image:loc>
      <image:title>Potassium Dichromate, 0.250 Normal (N/4), 0.04167 Molar (M/24) - 6070-5</image:title>
      <image:caption>Potassium Dichromate, 0.250 Normal (N/4), 0.04167 Molar (M/24) - 6070-5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_6f5ab66b-d709-47fc-b16a-739e39634b6b.png?v=1776329505</image:loc>
      <image:title>Potassium Chloride, 4 Molar, saturated with Silver Chloride, Electrode Filling Solution - 5920-32</image:title>
      <image:caption>Potassium Chloride, 4 Molar, saturated with Silver Chloride, Electrode Filling Solution - 5920-32</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chromate, 5% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6000-16</image:title>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 7000 µS/cm at 25°C - 5888.07-16</image:title>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_f42bb7bd-5342-4fc5-8c99-ed18e0af5226.png?v=1776329509</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 3000 µS/cm at 25°C - 5888.04-5</image:title>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6d3b6c35-e530-40c4-9e1c-1c50fb21619f.png?v=1776329506</image:loc>
      <image:title>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-100</image:title>
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    </image:image>
  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_120a_39b7289a-7d7b-4112-94a6-c4e720e80e10.png?v=1776329505</image:loc>
      <image:title>Potassium Chromate, 5% (w/v), Chloride Free, Indicator for Argentometric Titrations - 6000-4</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_a43802c7-43c0-4b69-8ccf-d8a7ae00d11a.png?v=1776329511</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 2767 µS/cm at 25°C, 0.02 Molar - 5888.03-16</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 2767 µS/cm at 25°C, 0.02 Molar - 5888.03-16</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_a6385485-ed70-43df-a6f3-4ceefc4cadc6.png?v=1776329510</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 12,880 µS/cm (12.88 mS/cm) at 25°C - 5888.13-1</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 12,880 µS/cm (12.88 mS/cm) at 25°C - 5888.13-1</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_cf178384-199f-4777-95d7-0820b37b5741.png?v=1776329505</image:loc>
      <image:title>POROS HQ Pool Matrix 20 mM Acetate / 50 mM Sodium Chloride, pH 5.5 - R5867900-500A</image:title>
      <image:caption>POROS HQ Pool Matrix 20 mM Acetate / 50 mM Sodium Chloride, pH 5.5 - R5867900-500A</image:caption>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_5d0d4dbc-91d3-484a-b03a-cfe30db00889.png?v=1776329508</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 718 µS/cm at 25°C - 5888.11-32</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 718 µS/cm at 25°C - 5888.11-32</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Acid Phthalate Standard, 1.00% (w/w) - 5869-16</image:title>
      <image:caption>Potassium Acid Phthalate Standard, 1.00% (w/w) - 5869-16</image:caption>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_082c68b6-5d34-44cf-9746-c17621e0fe2f.png?v=1776329512</image:loc>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_7c83c767-74e8-482f-834f-3b9dd73217eb.png?v=1776329515</image:loc>
      <image:title>Potassium Chloride Conductivity Standard, 1118 µS/cm at 25°C - R5888014-1A</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 1118 µS/cm at 25°C - R5888014-1A</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phosphate Phosphorus Standard, 20,000 ppm P (61,320 ppm PO?³?) - R5857200-120A</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 3000 µS/cm at 25°C - 5888.04-32</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 12,890 µS/cm (12.89 mS/cm) at 25°C - R5888135-1A</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Acetate, 5 Molar - R5866500-1A</image:title>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
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  <url>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1b_eece2501-4b7f-45bb-bb12-e930dc3409f5.png?v=1776329518</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_10f_c42ee310-6fba-4072-b9ee-3ef759e1ecfe.png?v=1776329517</image:loc>
      <image:title>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-2.5</image:title>
      <image:caption>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-2.5</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 718 µS/cm at 25°C - 5888.11-5</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 718 µS/cm at 25°C - 5888.11-5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-0250-normal-n4-6220-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Hydroxide, 0.250 Normal (N/4) - 6220-1</image:title>
      <image:caption>Potassium Hydroxide, 0.250 Normal (N/4) - 6220-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-00250-normal-n40-6050-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fc114d7c-c8c7-44f9-af65-aad9ed188ce1.png?v=1776329516</image:loc>
      <image:title>Potassium Dichromate, 0.0250 Normal (N/40) - 6050-4</image:title>
      <image:caption>Potassium Dichromate, 0.0250 Normal (N/40) - 6050-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chromate-0063-wv-5990-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chromate, 0.063% (w/v) - 5990-16</image:title>
      <image:caption>Potassium Chromate, 0.063% (w/v) - 5990-16</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Chloride Conductivity Standard, 1413 µS/cm at 25°C - R5888141-10F</image:title>
      <image:caption>Potassium Chloride Conductivity Standard, 1413 µS/cm at 25°C - R5888141-10F</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Potassium Ferricyanide, 10% (w/v) - 6095-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-00100-normal-n100-6045-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_aac72529-92ab-4103-ad7e-f88e8b284029.png?v=1776329518</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_1e757314-9654-42ba-8168-3f73a3c58936.png?v=1776329524</image:loc>
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      <image:caption>Potassium Chloride Conductivity Standard, 1400 µS/cm at 25°C - 5888.14-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-34-wv-r6099100-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_9c9cbbac-ae6c-491e-be1e-5bb2483cda4d.png?v=1776329518</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-0100-normal-n10-00167-molar-m60-6060-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_ad7eb7ac-3c0e-4ca9-a6d3-0e2067e0eed9.png?v=1776329520</image:loc>
      <image:title>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-5</image:title>
      <image:caption>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-5</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_84775216-9c6c-4421-b04c-35ebb9898c51.png?v=1776329520</image:loc>
      <image:title>Potassium fluoride, 20% (w/v) - R6099020-1A</image:title>
      <image:caption>Potassium fluoride, 20% (w/v) - R6099020-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-0500-normal-n2-6074-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_25ce4474-3a3f-4ebb-a77c-57a720f603ac.png?v=1776329521</image:loc>
      <image:title>Potassium Dichromate, 0.500 Normal (N/2) - 6074-16</image:title>
      <image:caption>Potassium Dichromate, 0.500 Normal (N/2) - 6074-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-ferrocyanide-10-wv-6096-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_35797fb9-1791-4ecf-8b5a-3ccc093c9d34.png?v=1776329522</image:loc>
      <image:title>Potassium Ferrocyanide, 10% (w/v) - 6096-16</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-spectrophotometric-standard-18-aucm-at-254-nm-r6085418-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_cbe7ac32-907b-43d8-bf9f-cd2032fdbbc2.png?v=1776329522</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-200-normal-r6251900-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_4c8088c4-d8d4-4ff1-a141-ffde2cc71ace.png?v=1776329523</image:loc>
      <image:title>Potassium Hydroxide, 2.00 Normal - R6251900-1A</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-0250-normal-n4-6220-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_56e9f4c9-c39b-4fce-95fd-c667c253d009.png?v=1776329523</image:loc>
      <image:title>Potassium Hydroxide, 0.250 Normal (N/4) - 6220-5</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-10-wv-6043-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_a04b6108-4a6f-4057-8fa3-a8d55279c351.png?v=1776329527</image:loc>
      <image:title>Potassium Dichromate, 10% (w/v) - 6043-32</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-025-normal-in-1-1-sulfuric-acid-r6070010-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_16830843-c464-495e-898a-d272509ab653.png?v=1776329520</image:loc>
      <image:title>Potassium Dichromate, 0.25 Normal in 1 + 1 Sulfuric Acid - R6070010-1C</image:title>
      <image:caption>Potassium Dichromate, 0.25 Normal in 1 + 1 Sulfuric Acid - R6070010-1C</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-40-ww-6104-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_11fee716-fe82-4747-bde5-77c8af7e1a06.png?v=1776329525</image:loc>
      <image:title>Potassium Fluoride, 40% (w/w) - 6104-1</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-control-solution-000025-for-roquette-america-r6091000-1c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1c_161fd26d-176d-43a1-8d86-727d5278d06a.png?v=1776329528</image:loc>
      <image:title>Potassium Dichromate Control Solution, 0.00025% for Roquette America - R6091000-1C</image:title>
      <image:caption>Potassium Dichromate Control Solution, 0.00025% for Roquette America - R6091000-1C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-ferrocyanide-saturated-aqueous-solution-r6097000-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_3002b8c2-2721-4c5f-ad38-bb232d493beb.png?v=1776329524</image:loc>
      <image:title>Potassium Ferrocyanide, saturated aqueous solution - R6097000-1A</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-20-wv-ph-70-6099-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_fbab5e55-3e9a-45fd-a06f-0163fce19c7c.png?v=1776329523</image:loc>
      <image:title>Potassium Fluoride, 20% (w/v), pH 7.0 - 6099-1</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-0100-normal-n10-00167-molar-m60-6060-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_751519ef-25c9-4860-9579-b710084f33d4.png?v=1776329520</image:loc>
      <image:title>Potassium Dichromate, 0.100 Normal (N/10), 0.0167 Molar (M/60) - 6060-32</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-40-wv-6100-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_3eea5605-511e-41b8-bc30-5a4d0215a2d1.png?v=1776329526</image:loc>
      <image:title>Potassium Fluoride, 40% (w/v) - 6100-1</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-biiodate-00250-normal-0002083-molar-5875-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_31924479-deb8-43a0-b513-dcca5b852861.png?v=1776329525</image:loc>
      <image:title>Potassium Biiodate, 0.0250 Normal, 0.002083 Molar - 5875-32</image:title>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
    <image:image>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1b_4ec717df-d0ef-46a8-9b5b-d282600e564a.png?v=1776329532</image:loc>
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      <image:caption>Potassium Iodide, 2% (w/v) - 6288-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-40-wv-6100-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_1246a4ee-6bdc-43de-89e5-75968bae5aac.png?v=1776329535</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-100-normal-6250-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_68978062-eafc-4a0c-b3a1-c922e1e58448.png?v=1776329540</image:loc>
      <image:title>Potassium Hydroxide, 1.00 Normal - 6250-1</image:title>
      <image:caption>Potassium Hydroxide, 1.00 Normal - 6250-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-permanganate-100-normal-6420-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_022f337d-134f-4710-ac1f-c21dc3d5f2d6.png?v=1776329535</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-50-wv-neutralized-6101-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1a_cbf0b224-a013-4cba-abb3-1cad19496a21.png?v=1776329536</image:loc>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-ts-650-wv-6125-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500a_29c41b31-8881-43a6-8e5e-ce3b5cac64ca.png?v=1776329537</image:loc>
      <image:title>Potassium Hydroxide TS, 6.50% (w/v) - 6125-16</image:title>
      <image:caption>Potassium Hydroxide TS, 6.50% (w/v) - 6125-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-208-normal-r6251910-1a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_ca2f9053-acd7-4ee0-9946-abefe54390db.png?v=1776329533</image:loc>
      <image:title>Potassium Hydroxide, 2.08 Normal - R6251910-1A</image:title>
      <image:caption>Potassium Hydroxide, 2.08 Normal - R6251910-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-200-normal-r6251900-4a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_e06fb906-ad02-41da-8a6e-f6c63e9a07f8.png?v=1776329535</image:loc>
      <image:title>Potassium Hydroxide, 2.00 Normal - R6251900-4A</image:title>
      <image:caption>Potassium Hydroxide, 2.00 Normal - R6251900-4A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-permanganate-0588-normal-6412-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_93baa68d-eb8b-4519-94c2-8a1485996d46.png?v=1776329542</image:loc>
      <image:title>Potassium Permanganate, 0.588 Normal - 6412-1</image:title>
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  </url>
  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_e3f2146c-58e3-4b66-a358-04521c36507c.png?v=1776329539</image:loc>
      <image:title>Potassium Iodide, 5% (w/v), Stabilized - 6290-5</image:title>
      <image:caption>Potassium Iodide, 5% (w/v), Stabilized - 6290-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-100-normal-6250-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Potassium Hydroxide, 1.00 Normal - 6250-16</image:title>
      <image:caption>Potassium Hydroxide, 1.00 Normal - 6250-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-dichromate-spectrophotometric-standard-18-aucm-at-280-nm-6088-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_fa0386db-098b-4755-abfa-377ce7cb21f4.png?v=1776329539</image:loc>
      <image:title>Potassium Dichromate Spectrophotometric Standard, 1.8 AU/cm at 280 nm - 6088-1</image:title>
      <image:caption>Potassium Dichromate Spectrophotometric Standard, 1.8 AU/cm at 280 nm - 6088-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-30-ww-6103-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_51face66-6260-41fd-a847-fef6bd00bb99.png?v=1776329539</image:loc>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-10-wv-6130-4</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120a_00e8a267-e831-44c0-9970-a36ccf26ba85.png?v=1776329538</image:loc>
      <image:title>Potassium Hydroxide, 10% (w/v) - 6130-4</image:title>
      <image:caption>Potassium Hydroxide, 10% (w/v) - 6130-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-50-ww-ph-83-6105-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_32787bfc-bb72-42d3-93d7-193bb6e4d979.png?v=1776329541</image:loc>
      <image:title>Potassium Fluoride, 50% (w/w), pH 8.3 - 6105-5</image:title>
      <image:caption>Potassium Fluoride, 50% (w/w), pH 8.3 - 6105-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-permanganate-0588-normal-6412-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_b6cd2491-7991-4dd8-99e6-007683f3e50a.png?v=1776329534</image:loc>
      <image:title>Potassium Permanganate, 0.588 Normal - 6412-32</image:title>
      <image:caption>Potassium Permanganate, 0.588 Normal - 6412-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-iodide-10-wv-stabilized-6300-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500b_c2d9b777-d3d4-4f41-bbda-e31ef9057a18.png?v=1776329536</image:loc>
      <image:title>Potassium Iodide, 10% (w/v), Stabilized - 6300-16</image:title>
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    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-10-wv-6130-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_10f_4da70dd5-573a-431d-a0e1-a0335a355b6f.png?v=1776329538</image:loc>
      <image:title>Potassium Hydroxide, 10% (w/v) - 6130-2.5</image:title>
      <image:caption>Potassium Hydroxide, 10% (w/v) - 6130-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-permanganate-0891-normal-6415-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_2fe097be-3193-4b63-b91a-4f5eedd0e9c3.png?v=1776329535</image:loc>
      <image:title>Potassium Permanganate, 0.891 Normal - 6415-32</image:title>
      <image:caption>Potassium Permanganate, 0.891 Normal - 6415-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-iodide-10-wv-stabilized-6300-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_0826a609-7601-4402-8916-5c828c853750.png?v=1776329535</image:loc>
      <image:title>Potassium Iodide, 10% (w/v), Stabilized - 6300-2.5</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-090-molar-normal-r6247000-500a</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500a_0a6a7492-d91d-4354-8b97-25ca3e1bc221.png?v=1776329539</image:loc>
      <image:title>Potassium Hydroxide, 0.90 Molar (Normal) - R6247000-500A</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-0500-normal-n2-6230-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_1ab625bc-dc89-44ca-8c6e-b212d634721f.png?v=1776329540</image:loc>
      <image:title>Potassium Hydroxide, 0.500 Normal (N/2) - 6230-32</image:title>
      <image:caption>Potassium Hydroxide, 0.500 Normal (N/2) - 6230-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-antimonyl-tartrate-02743-wv-13715-g500-ml-5872-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_57ed16b6-a755-46b4-a2e8-604f9719c075.png?v=1776329538</image:loc>
      <image:title>Potassium Antimonyl Tartrate, 0.2743% (w/v)  (1.3715 g/500 mL) - 5872-16</image:title>
      <image:caption>Potassium Antimonyl Tartrate, 0.2743% (w/v)  (1.3715 g/500 mL) - 5872-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-50-ww-ph-83-6105-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_b6d98ce7-f3da-4a4e-a0b5-f4baf002c991.png?v=1776329545</image:loc>
      <image:title>Potassium Fluoride, 50% (w/w), pH 8.3 - 6105-1</image:title>
      <image:caption>Potassium Fluoride, 50% (w/w), pH 8.3 - 6105-1</image:caption>
    </image:image>
  </url>
  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Hydroxide, 1 Normal in Diethylene Glycol - 6248-1</image:title>
      <image:caption>Potassium Hydroxide, 1 Normal in Diethylene Glycol - 6248-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-400-normal-6252-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_206a5b5a-ea76-4391-92e9-ba93af6f1bbc.png?v=1776329539</image:loc>
      <image:title>Potassium Hydroxide, 4.00 Normal - 6252-32</image:title>
      <image:caption>Potassium Hydroxide, 4.00 Normal - 6252-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-iodate-iodide-0100-normal-n10-6285-5</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_7c33c159-cadc-4738-84d3-378cd529a079.png?v=1776329539</image:loc>
      <image:title>Potassium Iodate-Iodide, 0.100 Normal (N/10) - 6285-5</image:title>
      <image:caption>Potassium Iodate-Iodide, 0.100 Normal (N/10) - 6285-5</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Potassium Iodide, 2% (w/v) - 6288-5</image:title>
      <image:caption>Potassium Iodide, 2% (w/v) - 6288-5</image:caption>
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  <url>
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    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Potassium Fluoride, 40% (w/v) - 6100-32</image:title>
      <image:caption>Potassium Fluoride, 40% (w/v) - 6100-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-chloride-200-molar-58992-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_cd320989-a09d-47a1-ad78-c141e21f2082.png?v=1776329537</image:loc>
      <image:title>Potassium Chloride 2.00 M Solution (500 mL)</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-0400-normal-6225-1</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_62892104-2281-4d24-8fba-5416a1acf153.png?v=1776329539</image:loc>
      <image:title>Potassium Hydroxide, 0.400 Normal - 6225-1</image:title>
      <image:caption>Potassium Hydroxide, 0.400 Normal - 6225-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-0500-normal-n2-6230-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_10f_1be75ac7-3ddd-4bd9-87f9-5a094c95ccee.png?v=1776329537</image:loc>
      <image:title>Potassium Hydroxide, 0.500 Normal (N/2) - 6230-2.5</image:title>
      <image:caption>Potassium Hydroxide, 0.500 Normal (N/2) - 6230-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-biiodate-00375-normal-r5876000-500c</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_561acbce-7742-40ef-a1de-d0f89f51e3a7.png?v=1776329543</image:loc>
      <image:title>Potassium Biiodate, 0.0375 Normal - R5876000-500C</image:title>
      <image:caption>Potassium Biiodate, 0.0375 Normal - R5876000-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-phosphate-monobasic-1765-gl-6451-32</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_717936a6-6bd0-4b32-958f-7bb53557d897.png?v=1776329538</image:loc>
      <image:title>Potassium Phosphate Monobasic, 176.5 g/L - 6451-32</image:title>
      <image:caption>Potassium Phosphate Monobasic, 176.5 g/L - 6451-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-hydroxide-00100-normal-n100-in-isopropyl-alcohol-6253-16</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_99dbbb59-2fbb-45b2-8700-a55f95441f73.png?v=1776329541</image:loc>
      <image:title>Potassium Hydroxide, 0.0100 Normal (N/100) in Isopropyl Alcohol - 6253-16</image:title>
      <image:caption>Potassium Hydroxide, 0.0100 Normal (N/100) in Isopropyl Alcohol - 6253-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-34-wv-r6099100-20f</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_20f_d61d9f4d-fd4a-47d7-9eb1-befd49d8e630.png?v=1776329544</image:loc>
      <image:title>Potassium Fluoride, 34% w/v - R6099100-20F</image:title>
      <image:caption>Potassium Fluoride, 34% w/v - R6099100-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-fluoride-50-wv-neutralized-6101-25</loc>
    <lastmod>2026-06-11T21:22:24-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Potassium Fluoride, 50% (w/v), Neutralized - 6101-2.5</image:title>
      <image:caption>Potassium Fluoride, 50% (w/v), Neutralized - 6101-2.5</image:caption>
    </image:image>
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