... , n=1-5 m=1-10 Al2O3: 30%MIN BASICITY:40%~90% WATER INSOLUBL Polyaluminium Chloride (PAC)Formula: [AL2(OH)nCL6-n]m ... , n=1-5 m=1-10Al2O3: 30%MIN BASICITY:40%~90 ... method-30% min,industrial water,spray method-30% min drinking water,spray methodpacking in 25kgs plastic woven bag,with plastic bag inner. Poly Aluminium Chloride (PAC)