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Aluminum sulfate powder (chemical formula Al2 (SO4) 3, formula quantity 342.15), white rhombic crystal powder, density 1.69g/cm 3 (25 ℃) . In papermaking industry, it is used as a precipitant for rosin and wax emulsion, and can be used as flocculant in water treatment. It can also be used as an internal retaining agent for foam extinguishers, making alum, aluminum and white raw materials, oil decolorizing, deodorant, raw materials for certain medicines, etc. It can also be used to make artificial gemstones and high-grade ammonium alum.
Aluminum sulfate, which accounts for about 50% of the total output, is mainly used for papermaking, and the second is used as flocculant in drinking water, industrial water and industrial wastewater treatment, accounting for about 40% of the total output of aluminum sulfate. When aluminum sulfate is added to this kind of water, colloidal aluminum hydroxide flocs can be formed, which can absorb and precipitate bacteria, colloids and other suspended matters. When used in drinking water treatment, the color and taste of water can be controlled.
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