... 3.We'r manufacturer 1. PRODUCT DESCRIPTION: MEMBRANE POTASSIUM HYDROXIDE 90% ,White flakes, HG/T 3688-2010, Molecular Formula:KOH2. PHYSICAL ... , the production of sodium metal, inorganic salt , chromate, manganese, borax acid salt, phosphate, etc, are also using a lot of Potassium ... .keep it away from heat, combustible and acids. Potassium Hydroxide 90% flake w/high quality,low price