... expose to the air. Protect the material from rain when loading and unloading. Be sure to keep the package dry and ... handling and transporting together with acid substances. In the event of a fire, use water as extinguishing agent4) Potassium carbonate ... 's degreasing. In addition, it is also used in manufacture of printing ink, photograph-drug, polyester, explosives, electroplating, tanning, ceramic, ...