Introduction Name:Potassium sulphate CAS No: 7778-80-5 Assay:92.2%,96% Potassium Oxide: 50%,52% CAS7778-80-5 sulphate of potash (SOP) powder,it is a inorganic compound with formula K2SO4.It is also called potassium sulphate, arcanite, or archaically potash of sulfur.Sulphate of potash can be used as a potash fertilizer for agriculture and as a potash salt for industry. Application Dye industry for intermediate, glass industry as a clarifying agent, spice industry as an additive, medicine as a purgative, food industry as a general additive, also used for serum protein biochemical test as an analytical reagent, such as a benchmark reagent, kai-type nitrogen catalyst .It is also used in the preparation of potassium salt and pharmaceutical industry Potassium sulfate is used as an additive in electroplating and acts as a conductive salt and additive.