To use: It is used in bleaching of textile and paper industry, purification and disinfection of tap water, refining of magnesium and other metals, and producing various chlorinated compounds such as pesticides, detergents, plastics, rubber and pharmaceuticals, such as in chemical industry for the production of sodium hypochlorite, aluminum chloride, ferric chloride, bleaching powder, bromine, phosphorus trichloride and other inorganic chemical products; For the production of organic chlorides, such as chloroacetic acid, epichlorohydrin, chlorobenzene, etc.; Also used in the production of neoprene rubber, plastic and plasticizer; Daily chemical industry for the production of synthetic detergent raw materials sodium alkyl sulfonate and sodium alkyl benzene sulfonate; In chemical production, polyvinyl chloride and chlorinated polyethylene are synthesized from polyethylene and liquid chlorine.