... arsenic, mercury, widely used in drinking water, industrial water. Polyaluminium Chloride, called PAC, is a multi-hydroxy, polynuclear cationic complex body ... good, no need of alkaline additives. Wide range of adaptation PH; low corrosion of pipelines equipment; can remove the water-color ... used in drinking water, industrial water and wastewater treatment. Polyaluminium Chloride PAC