... of old rubbers, the production of sodium metal, inorganic salt , chromate, manganese, borax acid salt, phosphate, etc, are also using a lot of Potassium ... hydroxide. 4.Storage Potassium hydroxide should be stored in the dry and cooling ... damp.keep it away from heat, combustible and acids. flakes of Potassium Hydroxide 95% price of economizer,solid