Polyaluminium chloride(PAC), as a polymer water purification material, is an inorganic polymer coagulant, referred to as PAC, polyaluminium, polyaluminum chloride, aluminum polychloride, Polymeric aluminum chloride.  Industrial-grade PAC adopts the most advanced spray drying production process and is made by polymerization of high-quality raw materials. The product has the advantages of flocculation and fast precipitation: good stability, wide adaptability to water, fast hydrolysis, strong adsorption capacity, formation of alumina flowers, dense precipitation, low effluent turbidity, good dehydration performance, etc. As the most effective water treatment chemicals, widely used in water treatment and drinking water, industrial water and sewage, wastewater treatment and other fields.