... Inorganic and organic industrial,it is used for the manufacture of chlorine, hydrogen, hydrochloric acid, soda ash, caustic soda, chlorate, ... , bleaching powder, sodium metal raw material, the refrigeration system of the cooling agent, synthetic organic materials and salting-out elixir ... ,it is used as a heat treatment3.Highly refined of sodium chloride used as saline.4.In food industry, daily life ...