... better purifying effect 2.Fast forming&depositing 3.Low alkalinity consumption 4.Wide PH values Chemical NamePoly Aluminium Chloride PAC-V( ... %,≤1PH Value(1% water solution)3.5-5.0SO2-4, % ≤2-7N,% ≤0.01As,% ≤0.0002Cr6+,% ≤0.0005Hg,% ≤0.00001Pb,% ≤ ... free aluminum, the water complies with the national standard;Low corrosin, easy to dissolve and beeter thaqn the similar products. Poly Aluminium Chloride ...