... or brownish liquidAL2O3 %≥10.018.35Basicity %40.0-90.051.81Max. water insoluble substance %≤0.20.2pH value(1% aqueous solution)3 ... .5-5.04.21Density (20°C g/cm3)1.121.39Fe, %,≤22As, %, ≤0.0002 ... Cr6+%, ≤0.0005 Hg %, ≤0.00001 Pb %, ≤0.001 Cd %, ≤0.0002 ApplicationPoly Aluminium Chloride(PAC) can be ...