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Polymerized aluminum chloride (PAC) is an inorganic substance, a new water purification material, an inorganic polymer coagulant.It is a water-soluble inorganic polymer polymer between AlCl3 and Al(OH)3, with the chemical general formula [Al2 (OH) n Cl 6-n] m where m represents polymerization and n represents the neutrality of the PAC product.

The color is yellow or pale yellow, dark brown, dark gray resin-like solid. The product has strong bridge adsorption properties, adsorption and precipitation during hydrolysis. The fundamental difference between polymerized aluminum chloride and traditional inorganic coagulant is that the traditional inorganic coagulant is low molecular crystal salt, and the structure of polymerized aluminum chloride consists of changeable polycarboxylic complex, fast flocculation precipitation speed, wide PH value range, no corrosion to pipeline equipment, obvious water purification effect, can effectively support water color SS, COD, BOD and arsenic and mercury, this product is widely used in drinking water, industrial water and sewage treatment.