... , metal sodium, water electrolysis as well as the inorganic salt production, Preparation of borax, chromium salts, manganese salts, phosphate, etc. need ... to use a lot of caustic sodaPackaging: Caustic soda flakes ----- 25kg / bag, the layers ... bags inside and outside, in the middle layer of lining bag, a total of three packages. Caustic soda solid ------ 200kg / ...