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Product name: Polyaluminium Chloride 
Alias: basic aluminum chloride; aluminum polychloride; aluminum hydroxychloride; PAC 
CAS RN: 1327-41-9; 101707-17-9; 11097-68-0; 
EINECS No.: 215-477-2 
Molecular formula: Al2Cl(OH)5 
Molecular weight: 174.45   Physical and chemical properties: Colorless or yellow resinous solid. Its solution is colorless or yellow-brown transparent liquid, sometimes gray-black mucus due to impurities. 
Uses: Polyaluminum can sterilize, deodorize, decolorize, remove fluorine, aluminum, chromium, phenol, remove oil, remove turbidity, remove heavy metal salts, remove radioactive pollutants, and has a wide range of Uses for purifying all kinds of water.