... (SO4)3 15.8%,16%,17% 1) Technical Index Aluminium Sulphate 17% ITEMSPECIFICATIONRESULTAluminum oxide Al2O3 %,min17.0017.15Iron (Fe) content %,max0.0050.0045Water ... , etc Packing: PP/PE 50kg/bag 2---Water-treatment aluminium sulphate Specification: Al2O3, 15.80%min; Fe: 0.50%max; pH: 3 ... : 15mm max Packing: PP/PE 50kg/bag 4--Ironless aluminium sulphate Specification: Al2O3, 16%min, Fe: 0.005%max, pH: 3. ...