Professional analysis of different properties of polyaluminum chloride and aluminum chloride Polyaluminum chloride-based water purification materials of the full range, each of the use of polyaluminium chloride are different, and now some customers have responded that aluminum chloride What is the difference between it and polyaluminum chloride? First of all, about PAC, PAC is an inorganic polymer coagulant, due to the bridging effect of hydroxyl ions and the polymerization of polyvalent anion produced by the larger molecular weight, higher charge Of inorganic polymer water treatment agents, the color was reddish brown or light yellow solid, the product also has other forms, such as liquid, there is the use of comparison, less white solid, no matter in what form, this Products have a strong bridge adsorption capacity, in the hydrolysis process, accompanied by polyhydroxy condensation, adsorption and precipitation and other physical and chemical processes, can sterilization, deodorant, in addition to fluoride, aluminum, chromium, degreasing, turbidity removal In addition to heavy metal salts, in addition to radioactive contaminants, has a wide range of uses in the purification of various water sources. The aluminum chloride chemical formula AlCl3, is a colorless transparent crystal or white and light yellow crystalline powder with a density of 2.44g / cm3, the melting point of 190 ° C, aluminum chloride vapor or dissolved in a non-polar solvent or In the molten state, both covalent dimeric molecules exist, soluble in many organic solvents, easily absorbed in the air and partially hydrolyzed hydrogen chloride and the formation of acid mist, soluble in water and strongly hydrolyzed, aqueous solution Acidic, soluble in water, and generate hexahydrate AlCl3 · 6H2O, but also soluble in ethanol and ether, while releasing a lot of heat.