First, the nature of the product   PAC (basic aluminum chloride) referred to PAC or BAC, is a new high polymer flocculant. It is a product between the AlCl3 and Al (OH), its main features are: 1 floc forming fast, good activity, good filtration. 2 without adding alkaline additives. In case of deliquescence effect unchanged. 3. Adapt to a wide PH value for waters wide, wide range of uses. 4 salt water treated less. 5 can remove heavy metals and radioactive substances to water pollution. Second, the product uses   can sterilization, deodorization, bleaching, fluoride, aluminum, chromium, phenol, oil, turbidity, except heavy metal salts, with the exception of radioactive contaminants in water purification with a wide variety of uses, such as : a purifying drinking water, sewage. 2 industrial water purification, industrial wastewater, mining, oil field injection water, purify papermaking, metallurgy, coal washing, leather and various chemical industrial waste water and so on. 3 industrial applications: paper sizing, printing dyeing, quick-setting cement, hardened precision casting, etc., can be used for recycling refractory bonding, glycerine refining, sugar refining, wrinkle-free fabric, * cosmetics and other industries and wastewater utilization. 4 In the oil refining industry, for oil-water separation. Third, the physical and chemical indicators Analysis Project Analysis Project Index Index alumina (Al2O3)% 29-31 arsenic (As) content% <0.0005 Basicity 60-85% manganese (Mn) content of 0.01-0.05% 0.5% Water-insoluble matter 1.5 Mercury (Hg) Content% <0.00002 PH value (1% solution) 3.5-5.0 lead (Pb) content% <0.003 ammonia nitrogen (N)% <0.05 Cadmium (Cd) content% <0.0005