Polyaluminium Chloride 1.Purity: 30%min 2.CAS No.: 1327-41-9 3.Appearance: dark yellow powder Polyaluminium Chloride for drinking waterPurity: 30% ItemRoller dried process Normal gradePAC-4AppearanceDark Yellow PowderAL2O3 %30±1Basicity %90-110Max. water insoluble substance %1.5pH value(1% aqueous solution)3.5-5.0SO2- %, ≤3.0Ammoniacal nitrogen %, ≤0.01Fe, %, ≤2As, %, ≤0.0002Mn, %, ≤0.0075Cr 6+ ...