What is the price of different content of PAC, aluminum content of the basic amount of water insoluble matter, respectively, how often PAC content, mainly about the aluminum content, which is also important to determine the quality of PAC Indicators, but also based on this content to talk about price and purpose. In the same content of PAC, followed by the indicator is water-insoluble, the GB also has detailed standards and laboratory methods, the color can be judged on the relative level, the color lighter than the color Insoluble matter is higher, but water is not as low as possible. There is also an indicator of the basicity of the salt, this is only required in the drinking grade, normal below 95 can be produced in our factory can reach 80 yellow, white 50 or so. Polyaluminium chloride can be used for sewage treatment in water companies, sewage treatment plants, paper mills, alcohol plants, food plants, coal washing plants, mining, steel mills, ceramics factories and other places.