Polyaluminium Chloride CAS No.: 1327-41-9 Appearance: yellow powder AL2O3: 30% min Usage: Drinking water treatment, paper mills as retention agent. a. Spray dried type :perfect for drinking water treatment. Product Name Polyaluminum Chloride CAS No.: 1327-41-9 Main Content ≥30 % Alkalinity: 40--90% As % ≤0.0005% Pb % ≤0.0001% Hg % ≤0.00001% Water Insoluble ≤0.5% b. Roller dried type:used for industrial water,waste water treatment. Main Content ≥30 % Alkalinity: 40--90% amino nitrogen 0.09%max Chromium: 15ppm max Manganese: 0.045%max As % 5ppm max Pb % 30ppm max Hg % 0.2ppm max Cd: 6ppm max