1.Al2O3:15.8%,16%,17% 2.Fe2O3: 0.47% 3.PH Value:3.1 4. ... Water Treatment Al2 (SO4)3 15.8%,16%,17% 1) Technical Index Aluminium Sulphate 17% ITEMSPECIFICATIONRESULTAluminum oxide Al2O3 %,min17.0017.15Iron (Fe ... .15%max Grain size: 15mm max(Flakys) (2)Specification: Al2O3; 17%min, Fe: 0.5%max, pH: 3.0min Water Insolubles ... . Aluminium Sulphate Water Treatment Al2 (SO4)3 15.8%,16%,17%