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Aluminium Sulfate

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Aluminium Sulfate
Chemical Product

Aluminium Sulfate

Molecular FormulaAl2(SO4)3 CAS10043-01-3 Molecular Weight342.15 g/mol
SynonymsAlum, Purified Aluminium Sulfate, Potash Alum
Safety & Hazards (GHS) Danger
Corrosive Corrosive

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Aluminium Sulfate is a chemical compound that appears as a white crystalline solid. It is widely used in water treatment, paper manufacturing, and as a mordant in dyeing processes. It is soluble in water and has acidic properties.
- Water Treatment: Used to remove impurities and clarify water. - Paper Industry: Acts as a sizing agent and improves the paper's strength. - Textile Industry: Used as a mordant in the dyeing of fabrics. - Agriculture: Applied as a soil conditioner to lower pH. - Food Industry: Used as a food additive (E520) and as a preservative in certain food products.
AppearanceWhite crystalline solid
OdorOdorless
Molecular FormulaAl2(SO4)3
Molecular Weight342.15 g/mol
Melting Point770 °C
Density2.71 g/cm³
SolubilitySoluble in water
pH (1% solution)3.0 - 4.0
Chemical StabilityStable under normal conditions, but hygroscopic
IUPAC Namedialuminum;trisulfate
Molecular FormulaAl2(SO4)3
Molecular Weight342.15 g/mol
SMILES[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3].[Al+3]
InChIKeyDIZPMCHEQGEION-UHFFFAOYSA-H
  • H318 Causes serious eye damage

⚠️ For information only; not a substitute for the official SDS.

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