Product details Ammonium Alum, Aluminium Ammonium Sulfate, Ammonium Aluminium Sulfate, Molecular formula: AINH4(SO4)2�·12H2O CAS NO.: 7784-25-0 Character: white crystal Usage: used in food, preserves, water purity, disinfection, rubber, leather, washing powder, livestock feed, pencils etc Specification: Purity -- 99.3%~100.5% Moisture -- 4% max Water Insoluble Matter -- 0.2% max As -- 0.0002 max Package: 25kg /50kg plastic woven bag Capacity of loading: 25MT/1X20' FCL(non-palletized)