... of a fire, use water as extinguishing agent. Applications: Potassium Carbonate is used as raw materials in manufacturing electro tube, TV kinescope, computer ... . Potassium Carbonate is foliar spray fertilizer and a constituent of compound fertilizer. In dyeing industry, it is ... . In addition, it is also used in manufacture of printing ink, photograph-drug, polyester, explosives, electroplating, ...