What is Polyaluminium Chloride?
Polyaluminium chloride, abbreviated as PAC, is an inorganic polymer water treatment agent. The types are divided into two categories: domestic drinking water use and non-domestic drinking water use, each subject to different relevant standards. The appearance is divided into two types: liquid and solid. Due to the different components contained in the raw materials, there are differences in appearance color and application effects.
Polyaluminium chloride is a colorless or yellow solid. Its solution is a colorless or yellow brown transparent liquid, easily soluble in water and dilute alcohol, insoluble in anhydrous alcohol and glycerol. It should be stored in a cool, ventilated, dry, and clean warehouse. During transportation, it is necessary to protect against rain and direct sunlight, prevent deliquescence, and handle with care during loading and unloading to prevent packaging damage. The storage period for liquid products is six months, and for solid products it is one year.
Water treatment agents are mainly used for purifying drinking water, industrial wastewater, and urban domestic sewage, such as removing iron, fluorine, cadmium, radioactive pollution, and floating oil. It is also used for industrial wastewater treatment, such as printing and dyeing wastewater. It is also used in precision casting, medicine, papermaking, rubber, leather making, petroleum, chemical industry, and dyes. Polyaluminium chloride is used as a water treatment agent and cosmetic raw material in surface treatment.
Polyaluminium chloridehas adsorption, coagulation, precipitation and other properties. It also has poor stability, toxicity, and corrosiveness. If accidentally splashed on the skin, rinse immediately with water. Production personnel should wear work clothes, masks, gloves, and long rubber boots. Production equipment should be sealed, and workshop ventilation should be good. Polyaluminium chloride decomposes when heated above 110 ℃, releasing hydrogen chloride gas, and finally decomposes into aluminum oxide; Reacts with acid to undergo depolymerization, resulting in a decrease in polymerization degree and alkalinity, ultimately transforming into aluminum salt. Interacting with alkali can increase the degree of polymerization and alkalinity, ultimately leading to the formation of aluminum hydroxide precipitate or aluminate salt; When mixed with aluminum sulfate or other multivalent acid salts, precipitation is easily generated, which can reduce or completely lose the coagulation performance.
Post time: Jul-12-2024