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Aluminum sulfate (chemical formula: Al2 (SO4) 3) is a widely used industrial reagent, often confused with alum. Aluminum sulfate is commonly used as a flocculant in purifying drinking water and wastewater treatment equipment, as well as in the paper industry. Under natural conditions, aluminum sulfate hardly exists in the form of anhydrous salts. It forms a series of hydrates, among which aluminum sulfate hexahydrate is the most common.
Industrial products are gray white flakes, granules or blocks, with a light green color due to the presence of low iron salts, and a yellow surface due to the oxidation of low iron salts. The crude product is a gray white fine crystalline porous substance. Non toxic, dust can irritate the eyes.
Not easily weathered and loses crystalline water, relatively stable. Heating will cause water loss, and high temperatures will decompose into alumina and sulfur oxides. Heating to 770 ℃ begins to decompose into alumina, sulfur trioxide, sulfur dioxide, and water vapor. Soluble in water, acid, and alkali, insoluble in ethanol. The aqueous solution is acidic. After hydrolysis, aluminum hydroxide is generated. Long term boiling of aqueous solution can generate basic aluminum sulfate.
| Iterm | Data |
|
Al2O3
|
≥15.6%
|
|
Fe
|
≤0.20%
|
|
Water Insoluble
|
≤0.10%
|
|
PH Value
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≤3.0%
|
Henan Kexing Water Treatment Materials Co., Ltd.
Main categories: Poly aluminum chloride,Polyacrylamide,Poly aluminum Chloride,Sodium Acetate,Defoamer
