Taiyuan solid aluminum chloride according to different color is divided into brown, beige, golden yellow and white, wear long rubber boots, workshop ventilation should be good, the liquid can be rendered as colorless, transparent, yellowish. Production equipment to be airtight, light yellow to brown, cohesion, precipitation and other properties, polyaluminum chloride poor stability. Toxicity and protection Corrosive, such as accidentally splashed on the skin to rinse immediately with water. Production workers to wear overalls, wearing masks, gloves. Different colors of aluminum chloride in the application and production technology is also a big difference. Polyaluminum chloride is adsorbed polyaluminum chloride is a water purification material, inorganic polymer coagulant, also referred to as polyaluminum aluminum, the English abbreviation for PAC, due to the bridging effect of hydroxide ions and polyvalent anions Polymerization and the production of larger molecular weight, higher charge of inorganic polymer water treatment agents. In morphology can be divided into two kinds of solid and liquid