Poly Aluminium Chloride (PAC)CAS NO.:12024-91-0Molecular Formula:[AL2(OH)nCL6-n.XH2O]mAppearance:Yellow powder or particles Specifition:Purity: 29% Min Basticity: 60-80% Fe: 0.0003%Max Ph Value: 3.5-5.0 Water-insoluble Matter: 0.5%Max As: 0.0005%Max Pb: 0.03%Max Cd: 0.0006%Max Packing:50kg/bag,20-22ton/20'FCLUsage:water-treatment industry, such as Tapwater ,Industrial Process Water, Daily sewage, etcH.S. Code:28273200