Polyaluminium Chloride Flocculating Agent Polyaluminium Chloride PAC Cas No1327-41-9

Poly-aluminum chloride is a water purification material, an inorganic polymer coagulant, and a polymer with a relatively large molecular weight and a relatively high charge of inorganic polymer produced by the bridge action of hydroxide ions and the polymerization of polyvalent anions. Pharmacy. In form, it can be divided into two kinds: solid and liquid. The solids are divided into brown, beige, golden yellow and white according to different colors, and the liquid can be represented as colorless, transparent, yellowish, light yellow to yellow-brown.

The poly aluminum chloride having a content of aluminum oxide between 27 and 30 is mostly khaki-yellow yellow solid powder. These types of polyaluminum chlorides have relatively good water solubility, and in the course of dissolution, physicochemical changes such as electrochemical, agglomeration, adsorption, and precipitation eventually lead to [Al2(OH)3(OH)3] precipitation, thereby achieving the purpose of purification. In the use of polyaluminum chloride, without the need for other additives, floe formation is fast and thick, high activity, rapid precipitation, and a clear effect on high turbidity water purification.

The raw material of the yellow polyaluminum chloride is calcium aluminate powder, hydrochloric acid, bauxite, mainly used for sewage treatment and drinking water treatment, if the raw material for drinking water treatment is aluminum hydroxide powder, hydrochloric acid, and slightly calcium aluminate Powder, plate and frame pressure filtration processes or spray drying processes have strict requirements on heavy metals in the drinking water treatment countries, so both raw materials and production processes are better than tan PACs.