Aluminium sulfate no ferrous Specification: Al2O3:＞17%; Fe:＜0.005%; PH:＞3.0; Insoluble matter in water: ＜0.1%, As:＜0.0005%; Pb:＜0.002% Granularity: ＜15mm Use: treatment of drinking water and industrial water, high-grade paper making and high-grade titanium pigment production. Quality standard : Item Technical Requirement/ Index (Grade A) Technical Requirement/ Index (Qualified Product) AL2O3 %≥ 17.00 15.80 Fe ≤ 0.005 0.007 Insoluble matter in water %≤ 0.1 0.1 PH (1% solution) %≥ 3.0 3.0 Granularity 　mm 15 15