... 2.Hazard Class:8 3.Prompt Delivery 4.High Quality Potassium Hydroxide KOH 90% 1.Character :Hazard Class: 8UN NO.: ... widely used in the production of potassium carbonate including KHCO3, potassium soaps,detergents, fine cosmetic, potassium hydrogen phosphate, potassium permanganate, medical intermediate, liquid ... rain should be prevented during transportation.Package: 25kg/bag potassium hydroxide 90%