... .White flakes 3.We'r manufacturer 1. PRODUCT DESCRIPTION: MEMBRANE POTASSIUM HYDROXIDE 90% ,White flakes, HG/T 3688-2010, Molecular Formula ... , phosphate, etc, are also using a lot of Potassium hydroxide. 4.Storage Potassium hydroxide should be stored in the dry and cooling ... prohibit damp.keep it away from heat, combustible and acids. Potassium Hydroxide 95% w/high quality,low price,solid