... professional manufacturer 2.near by the raw material of Sodium Hydroxide(naoh) flake pears and other content. 1 ... after comfirm order5 .Application: The use of caustic soda/sodium hydroxide and alkaline desiccant, paper, aluminum smelting, refining ... of metallic sodium, water electrolysis, as well as inorganic salt production, preparation of borax, chromium salt, potassium permanganate, phosphate ...