... ,BV third party test. 3.Appearance:White Flakes 1.Sodium Hydroxide 90%,95%,48% 2.ISO,SGS,BV third party test ... Flakes 4.Package: 25kgs,50kgs PP/PE bagsBest Price Sodium Hydroxide 90%,95% White Flakes1. Properties:Product Name:Caustic Potash or ... dry conditions away from acids, organic chemicals, metals such as aluminum, tin, zinc, lead etc. and their alloys. Potassium Hydroxide