... crystal, white powder, granular crystal or prill. Potassium carbonate tech grade is monoclinic crystal, white powder, granular crystal or prill.Property ... phosphate, etc. Potassium Carbonate is foliar spray fertilizer and a constituent of compound fertilizer. In dyeing industry, it is used to produce ... , tanning, ceramic, building materials, crystals and medicine. Potassium carbonate tech grade