... electric arc breaking-off during welding. It is used to produce food additives like potassium sorbate, monopotassium phosphate, etc. Potassium ... of compound fertilizer. In dyeing industry, it is used to produce vat dyestuff and discharge of ice dyeing. It is ... , ceramic, building materials, crystals and medicine. Industrial Grade Food Grade Unit Fine Grade TECHNICAL GRADEFIRST Grade Regular Grade Unit ...