Divided into: * Food product level above 99% , Industrial level above 96% . * Usage-Deal with water clarification, color dye, food additive, deodor stone to remove the body odors. The ingredient of potassium alum can be found into food product level and industrial level, while the ingredient of food product level is higher than 99%, while that of industrial level lies between 96% to 98%. The ingredient is mainly used on making paper, dye printing, leather tanning, fire extinguisher facilities, pharmacy, wood preservation, water processing, food additive, and washing seafood.