... substances. In the event of a fire, use water as extinguishing agent4) Potassium carbonate is used as raw ... , monopotassium phosphate, etc. Potassium carbonate is foliar spray fertilizer and a constituent of compound fertilizer. In dyeing ... of printing ink, photograph-drug, polyester, explosives, electroplating, tanning, ceramic, building materials, crystals and medicine Technical Grade of Potassium ...