... No.: 1327-41-9 3.Appearance: dark yellow powder Polyaluminium Chloride for drinking waterPurity: 30% ItemRoller dried process Normal gradePAC- ... water purification, metallurgy, coal washing, leather and all kinds of chemical waste water treatment; 3, industrial application; paper sizing, printing ... other industries, waste water can be recycled use; Water treatment chemical PAC Polyaluminium Chloride