... has Low impurity and Superior coagulating effect LIQUID PAC 18% ItemsPAC LIQUID 18%StandardResultAppearanceColorless or brownish liquidAL2O3 %≥10.018.35Basicity %40.0 ... .39Fe, %,≤22As, %, ≤0.0002 Cr6+%, ≤0.0005 Hg %, ≤0.00001 Pb %, ≤0.001 Cd %, ≤0.0002 ApplicationPoly Aluminium Chloride(PAC) can ... drinking water, polluted industrial wastewater and industrial sewege. Liquid PAC 18%