{"product_id":"lab-pro-sodium-hydroxide-0-1n-m-1-gallon-sh1160-38-zs0606-128","title":"Sodium Hydroxide 0.1 N (0.1 M) Solution","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat it is.\u003c\/strong\u003e This sodium hydroxide solution is a 0.1 N (0.1 M) volumetric standard base, offered in 1 quart and 1 gallon sizes. It is a clear, colorless titrant for determining acids and acidity in analytical, food, and QC labs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolar equals normal.\u003c\/strong\u003e Sodium hydroxide releases one hydroxide ion per formula unit, so 0.1 N equals 0.1 M. Each liter contains about 4.000 g of NaOH, and each milliliter neutralizes 0.1 millimole of acid, equal to 3.646 mg of HCl or 6.005 mg of acetic acid (calculated).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe most common standard base.\u003c\/strong\u003e Sodium hydroxide is the standard titrant for acids in most laboratories. It reacts quickly and completely with strong and weak acids, and its endpoint is easily seen with phenolphthalein or measured with a pH meter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandardization with KHP.\u003c\/strong\u003e Sodium hydroxide is not a primary standard because it absorbs moisture and carbon dioxide. Standardize it against dried potassium hydrogen phthalate (KHP), a stable primary standard acid, using phenolphthalein or a potentiometric endpoint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon dioxide sensitivity.\u003c\/strong\u003e Sodium hydroxide absorbs carbon dioxide from the air, forming sodium carbonate, which lowers effective strength and blurs endpoints. Keep the container tightly closed and restandardize regularly, especially for critical work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon determinations.\u003c\/strong\u003e Typical uses include acetic acid in vinegar, titratable acidity in juices, wine, and dairy, acid value of oils, free acid in chemicals, and standardization or cross-checking of acid titrants such as Lab Pro's Hydrochloric Acid 0.1 N (0.1 M), 1 Gallon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo sizes.\u003c\/strong\u003e The 1 quart size (ZS0606-32) suits teaching labs and occasional testing, while the 1 gallon size (ZS0606-128) supports QC labs that titrate daily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalculating acidity.\u003c\/strong\u003e Acidity, as grams of acid per 100 mL, equals the titrant volume multiplied by the normality and by the acid's milliequivalent weight, divided by the sample volume and multiplied by 100. For acetic acid, the milliequivalent weight is 0.06005 g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling at a glance.\u003c\/strong\u003e At 0.1 N, sodium hydroxide can irritate eyes and skin. Wear safety glasses and gloves, rinse splashes with water, and keep it away from acids and reactive metals such as aluminum. Pair it with Phenolphthalein Indicator 1% in IPA (1 Pint, 20 L).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #cfcfcf; margin-bottom:28px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eChemical Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eSodium hydroxide, aqueous volumetric solution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eCAS Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e1310-73-2 (sodium hydroxide); 7732-18-5 (water)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eEC Number (NaOH)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e215-185-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eSynonyms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eCaustic soda solution, NaOH solution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eFormula (active)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eNaOH\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eMolecular Weight (active)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e40.00 g\/mol\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eConcentration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e0.1 N (0.1 M)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eNaOH Content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eAbout 4.000 g\/L (calculated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eNeutralizing Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e1.00 mL = 0.1 mmol acid; 3.646 mg HCl; 6.005 mg acetic acid (calculated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eTypical Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003ePhenolphthalein\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003ePrimary Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003ePotassium hydrogen phthalate (KHP)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eClear, colorless liquid\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eStorage Note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eAbsorbs CO2; keep tightly closed\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eExposure Limit (NaOH)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eNIOSH REL 2 mg\/m³ ceiling\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003eHazard Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003eEye and skin irritant at this strength (confirm on SDS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left; width:32%; background:#f5f5f5;\"\u003e\u003cstrong\u003ePackage Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #cfcfcf; padding:8px 12px; vertical-align:top; text-align:left;\"\u003e\u003cstrong\u003e1 quart; 1 gallon\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eAvailable Variants\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZS0606-32:\u003c\/strong\u003e 1 quart for teaching labs and occasional testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZS0606-128 (SH1160-38):\u003c\/strong\u003e 1 gallon for daily QC titration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplications \/ Common Uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitratable acidity:\u003c\/strong\u003e Measures acidity in juices, wine, and dairy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVinegar analysis:\u003c\/strong\u003e Determines acetic acid content.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcid value:\u003c\/strong\u003e Titrates free acids in oils and fats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcid titrant verification:\u003c\/strong\u003e Cross-checks HCl and other standard acids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeaching labs:\u003c\/strong\u003e Demonstrates acid-base titration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStorage, Handling \u0026amp; Shipping\u003c\/h4\u003e\n\u003cp\u003eStore tightly closed at room temperature, away from acids and reactive metals. Sodium hydroxide solutions absorb carbon dioxide from the air, so keep the container sealed and restandardize when results depend on exact normality.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncompatible materials:\u003c\/strong\u003e Acids, aluminum, zinc, tin, and other reactive metals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure limit (NaOH):\u003c\/strong\u003e NIOSH REL 2 mg\/m³ ceiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpill response:\u003c\/strong\u003e Contain, neutralize cautiously with a weak acid, and rinse with water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirst aid:\u003c\/strong\u003e Eyes: flush with water for at least 15 minutes. Skin: rinse with water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRelated Categories \u0026amp; Services\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eShop \u003ca href=\"https:\/\/labproinc.com\/collections\/bases\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBases\u003c\/a\u003e for related products in this category.\u003c\/li\u003e\n\u003cli\u003eExplore \u003ca href=\"https:\/\/labproinc.com\/pages\/buffers-standards-solutions\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBuffers, Standards \u0026amp; Solutions\u003c\/a\u003e and \u003ca href=\"https:\/\/labproinc.com\/collections\/acs-grade-laboratory-chemicals\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eACS Grade Laboratory Chemicals\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/labproinc.com\/pages\/be-a-lab-pro-vmi-program\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eVendor Managed Inventory (VMI) Program\u003c\/a\u003e: Lab Pro can stock, track, and replenish this item on site so it never runs out. Contact info@labproinc.com or 888-452-2776 to set up a VMI assessment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRelated Articles\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/labproinc.com\/blogs\/news\/quantitative-analysis\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTitration Methods for Precise Chemical Analysis in Labs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/labproinc.com\/blogs\/news\/strong-acids-vs-weak-acids\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eStrong Acids vs. Weak Acids: Complete Lab Safety Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/labproinc.com\/blogs\/news\/chemical-dilution-calculator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eChemical Dilution Calculator: Acid \u0026amp; Solvent Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lab Pro Inc","offers":[{"title":"1 Quart","offer_id":67674936639637,"sku":"ZS0606-32","price":30.0,"currency_code":"USD","in_stock":true},{"title":"1 Gallon","offer_id":67674936672405,"sku":"ZS0606-128","price":53.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/2327\/6437\/files\/MainImage_02fee701-919c-4a97-912e-376cc29dbec7.png?v=1791899328","url":"https:\/\/labproinc2.myshopify.com\/products\/lab-pro-sodium-hydroxide-0-1n-m-1-gallon-sh1160-38-zs0606-128","provider":"Lab Pro Inc Plus","version":"1.0","type":"link"}