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Aluminum sulfate (Al2(SO4)3)-Powder

Aluminum sulfate (Al2(SO4)3)-Powder

CAS: 10043-01-3
Molecular Formula: Al2(SO4)3
Purity: 99.99%
Products Code: TR13160800UN
Specification Model: -100-325 Mesh
EINECS No.: 233-135-0
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Aluminum sulfate (Al2(SO4)3)-Powder introduce:


Aluminium sulfate is a chemical compound with the formula Al2(SO4)3. It is soluble in water and is mainly used as a coagulating agent (promoting particle collision by neutralizing charge) in the purification of drinking waterand waste water treatment plants, and also in paper manufacturing.

Chemical formula:Al2(SO4)3

Molar mass:342.15 g/mol 

Appearance:white crystalline solid; hygroscopic

Density:2.672 g/cm3 (anhydrous)

Melting point:770 °C (1,420 °F; 1,040 K) 

Solubility in water:31.2 g/100 mL (0 °C);36.4 g/100 mL (20 °C);89.0 g/100 mL (100 °C)

Solubility:slightly soluble in alcohol, dilute mineral acids

Acidity (pKa):3.3-3.6

Magnetic susceptibility (χ):-93.0·10−6 cm3/mol

Refractive index (nD):1.47

Crystal structure:monoclinic (hydrate)


Aluminum sulfate acts as a flocculating agent in the purification of drinking water, and in waste water treatment plants. It acts as a mordant in dyeing, printing, textiles and also used in paper manufacturing. It is a waterproofing agent and accelerator in concrete. Further, it is used as a foaming agent in fire fighting foam, photographic film and in photochemicals. It is also used in styptic pencils, pain relief and in dentistry for gingival retraction cords.
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