{"product_id":"potassium-acid-phthalate-primary-standard-acs-grade-500-g-gfs-chemicals-60001","title":"Potassium Acid Phthalate, Primary Standard, ACS Grade, 500 g, GFS Chemicals, 60001","description":"\u003cp\u003e\u003cstrong\u003eGFS Chemicals® Potassium Acid Phthalate, Primary Standard, ACS Grade, 500 g, 60001\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAppearance: white solid\u003c\/li\u003e \u003cli\u003eCAS Nos: 877-24-7\u003c\/li\u003e \u003cli\u003eChemical Formula: HOCOC\u003csub\u003e6\u003c\/sub\u003eH\u003csub\u003e4\u003c\/sub\u003eCOOK\u003c\/li\u003e \u003cli\u003eMolecular Weight: 204.23 g\/mL\u003c\/li\u003e \u003cli\u003epH:  4.00 (0.05 M Aqueous Solution)\u003c\/li\u003e \u003cli\u003eSolubility in Water:  80 g\/L at 20 °C\u003c\/li\u003e \u003cli\u003eSpecific Gravity:  1.64 g\/mL\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003ctable style=\"width:\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eAssay (dried basis)\u003c\/td\u003e \u003ctd\u003e99.95 to 100.05 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eInsoluble\u003c\/td\u003e \u003ctd\u003e0.000 to 0.005 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003epH (0.05 M solution) @ 25 C\u003c\/td\u003e \u003ctd\u003e4.00 to 4.02 pH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eChlorine compounds (as Cl)\u003c\/td\u003e \u003ctd\u003e0.000 to 0.003 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSulfur compounds (as S)\u003c\/td\u003e \u003ctd\u003e0.000 to 0.002 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eHeavy metals (as Pb)\u003c\/td\u003e \u003ctd\u003e0.0000 to 0.0005 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eIron\u003c\/td\u003e \u003ctd\u003e0.0000 to 0.0005 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSodium\u003c\/td\u003e \u003ctd\u003e0.000 to 0.005 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eNIST Traceable\u003c\/td\u003e \u003ctd\u003e0 to 0 Maximum\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"GFS Chemicals","offers":[{"title":"EA (1)","offer_id":51111535313211,"sku":"GFS-554-09-EA","price":99.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/GFS-554-09_da9b53fa-a59b-4b25-b055-3a9e439ef7fa.png?v=1784718661","url":"https:\/\/preiser.com\/products\/potassium-acid-phthalate-primary-standard-acs-grade-500-g-gfs-chemicals-60001","provider":"Preiser Scientific","version":"1.0","type":"link"}