Chemical Product Library / Reference
Aluminium sulfate
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Aluminium sulfate |
|---|---|
| English synonyms | Aluminum sulfate;Alum;Sulfuric acid aluminum salt |
| Chinese name | 硫酸铝 |
| Chinese synonyms | 明矾;无水硫酸铝;无铁硫酸铝 |
| Chemical category | Food Acids & Regulators |
| CAS No. | 10043-01-3 |
| EINECS No. | 233-135-0 |
| Molecular formula | Al2(SO4)3 |
| Molecular weight | 342.15 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Al2O3 ≥15.8%; water-insoluble matter ≤0.05%; iron ≤0.005%; pH (1% aqueous solution) ≥3.0
Performance characteristics
White crystalline powder or flakes, soluble in water, aqueous solution is acidic
Application scenarios
Drinking water and wastewater flocculant, paper sizing agent, food additive, fire extinguishing agent