Potassium sulfate (K2SO4) (in British English potassium sulphate, also called sulphate of potash, arcanite, or archaically known as potash of sulfur) is a non-flammable white crystalline salt which is soluble in water. The chemical compound is commonly used in fertilizers, providing both potassium and sulfur.
P 2507 (OTTO) Potassium sulphate, GR 99%+ Cas 7778-80-5 - used in the determination of nitrogen by Kjeldahl method and protein in foodstuffs. P 2507 (OTTO) Potassium sulphate, GR 99%+ Cas 7778-80-5 - used in the electrostatic effects on pKa values of amino acid residues in the staphylococcal nuclease. P 2507 (OTTO) Potassium sulphate, GR 99%+ Cas 7778-80-5 - used in the separation of protein through electrophoresis and also serves as a laboratory reagent.