{"product_id":"honeywell-hydroxynaphthol-blue","title":"Honeywell Hydroxynaphthol Blue","description":"\u003ch4\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eHydroxynaphthol Blue.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eDescription:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHydroxynaphthol Blue\u003c\/strong\u003e is an azo dye commonly used as a \u003cstrong\u003emetal indicator\u003c\/strong\u003e in complexometric titrations. It plays a crucial role in analytical chemistry, particularly in detecting calcium and other metal ions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eChemical Formula\u003c\/strong\u003e – C₂₀H₁₁N₂Na₃O₁₁S₃.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e – Black-violet powder.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSolubility\u003c\/strong\u003e – Soluble in water.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAcidity (pKa)\u003c\/strong\u003e – 6.44 and 12.93.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eColor Change\u003c\/strong\u003e – Shifts from reddish-pink to deep blue depending on pH and metal ion presence.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"text-md-strong pb-1 [\u0026amp;:not(:first-child)]:pt-3.5\"\u003e\u003cstrong\u003eCommon Uses\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eComplexometric Titration\u003c\/strong\u003e – Determines the endpoint in metal titrations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCalcium Detection\u003c\/strong\u003e – Used as a metallochromic indicator in EDTA titration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003epH Indicator\u003c\/strong\u003e – Changes color in alkaline conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLaboratory Applications\u003c\/strong\u003e – Utilized in metal affinity chromatography\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003eCatalog Number:15634110\u003c\/span\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"50 g \/ Unit \/ New - Unopened (Sealed)","offer_id":51413194604871,"sku":"15634110","price":186.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/7245\/8055\/files\/chemical-structure-cas-63451-35-4.jpg-650.webp?v=1744266461","url":"https:\/\/checkout.wasteless.bio\/en-us\/products\/honeywell-hydroxynaphthol-blue","provider":"Wasteless Bio","version":"1.0","type":"link"}