{"product_id":"potassium-sorbate","title":"Potassium Sorbate","description":"\u003cp\u003eCAS No. 24634-61-5\u003c\/p\u003e\n\u003cp\u003ePotassium sorbate is the inactive salt of sorbic acid. It readily dissolves in water where it converts to sorbic acid, its active form, at a low pH. Sorbic acid is very pH dependent. While it shows some activity up to pH 6 (about 6%), it is most active at pH 4.4 (70%). At pH 5.0 it is 37% active. As sorbic acid, it is considered to be active against mold, fair against yeast and poor against most bacteria. Sorbic acid is an unsaturated fatty acid and as such is subject to oxidation (use of an antioxidant like Mixed Tocopherols T50 is recommended). It is also sensitive to UV light and may turn yellow in solution.  Gluconolactone is reported to stabilize potassium sorbate against discoloration and darkening in aqueous solutions and may be useful in stabilizing sorbic acid in the water phase of a product.\u003c\/p\u003e\n\u003cp\u003eWhile sorbic acid is naturally occurring in some fruits (like the berries of the mountain ash), virtually all of the world's production of sorbic acid, from which potassium sorbate is derived, is manufactured synthetically, and is a nature-identical compound chemically equivalent to the molecule found in nature.\u003c\/p\u003e\n\u003cp\u003eSorbic acid can cause contact dermatitis at concentrations above or below 0.5%. Studies show that if it is used at a concentration of no more than 0.2% it is unlikely to constitute a safety hazard.\u003c\/p\u003e\n\u003cp\u003ePotassium sorbate is not a broad spectrum preservative for cosmetic use and should be combined with other preservatives. If potassium sorbate is used as a preservative, the pH of the finished product may need to be reduced for potassium sorbate to be effective.  This is because potassium sorbate is the inactive salt form of sorbic acid.  To be useful, the pH of the formulation must be low enough to release the free acid for useful activity. \u003c\/p\u003e\n\u003cp\u003eFollowing is a chart to of the relative activity at various pH:\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"1\" cellspacing=\"1\" height=\"123\" style=\"width: 279px;\"\u003e\n\u003ccaption\u003e\u003cspan style=\"font-size: small; font-weight: bold;\"\u003eActivity of Sorbic Acid\u003c\/span\u003e\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 68px;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003epH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 204px;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e% Active Sorbic Acid\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 68px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 204px;\"\u003e98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 68px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 204px;\"\u003e85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 68px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 204px;\"\u003e37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 68px;\"\u003e6\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 204px;\"\u003e5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 68px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 204px;\"\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAll cosmetic products should undergo microbial testing to ensure the efficacy of any preservative system.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eINCI:\u003c\/span\u003e Potassium Sorbate\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eCalifornia Prop 65 Statement: \u003c\/span\u003eThe following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm.\u003c\/p\u003e\n\u003ch5\u003eSDS \u0026amp; Tech Data\u003c\/h5\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Specification Sheet - Potassium Sorbate | Lotioncrafter\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/files\/Specification_Sheet_-_Potassium_Sorbate.pdf?v=1721324439\" target=\"_blank\"\u003ePotassium Sorbate Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" title=\"SDS Potassium Sorbate\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/files\/sds_potassium_sorbate_20240208.pdf?v=1707428232\" target=\"_blank\"\u003ePotassium Sorbate SDS\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFormulation Guide\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003eAt temperatures above 60°C (140°F), potassium sorbate can begin to sublime. Add to the water phase of formulations at a temperature below 60°C (140°F). If adding it after oil and water phases have been combined, predissolving the required potassium sorbate in a portion of the water phase will make it easier to incorporate into the formed emulsion. Use in formulations with pH 5 or lower.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eRecommended Use Levels:\u003c\/span\u003e 0.1% - 0.5% \u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eAppearance:\u003c\/span\u003e Granular Powder\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eSolubility:\u003c\/span\u003e Soluble in water up to 58%\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003c\/span\u003eTry out these formulations using this ingredient:\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Goat Milk Lotion\" href=\"https:\/\/lotioncrafter.live\/blogs\/skin-care\/goat-milk-lotion\" target=\"_blank\"\u003eGoat Milk Lotion\u003c\/a\u003e\u003c\/p\u003e","brand":"Undisclosed","offers":[{"title":"4 oz - $5.95","offer_id":13079648370777,"sku":"KSORB-04","price":5.95,"currency_code":"USD","in_stock":true},{"title":"8 oz - $6.75","offer_id":13079648338009,"sku":"KSORB-08","price":6.75,"currency_code":"USD","in_stock":true},{"title":"1 lb - $9.45","offer_id":13079648305241,"sku":"KSORB-1","price":9.45,"currency_code":"USD","in_stock":true},{"title":"5 lbs - $41.95","offer_id":13079648272473,"sku":"KSORB-5","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/products\/potassium-sorbate.jpg?v=1571722092","url":"https:\/\/lotioncrafter.live\/products\/potassium-sorbate","provider":"Lotioncrafter","version":"1.0","type":"link"}