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.