... during welding. It is used to produce food additives like potassium sorbate, monopotassium phosphate, etc. Potassium Carbonate is foliar spray fertilizer and a constituent ... , explosives, electroplating, tanning, ceramic, building materials, crystals and medicine. Industrial Grade Food GradeUnitFine GradeTECHNICAL GRADEFIRST GradeRegular GradeUnitStandardPurity(as K2CO3 ) % ≥99.099.098 ...