... dyeing and printing industry, it has no the defects of Polymer Ferric Sulphate. It solution is weak acid. Properties: ... polluted, with algae, low temperature, low turbidity. It is preferred to high turbidity raw water purification.7 ... .01Basicity %9.0-14.014.0PH value(1% solution)2.0-3.02.4Arsenic(As)% , ≤0. ... , ≤0.150.01Basicity, %9.0-14.014.0PH (1% aq. solution)2.0-3.02.4As, % , ≤0.00080.0001Pb , % , ...