Aluminum Sulfate
Aluminum Salt
- CAS
- 10043-01-3
- EC
- 233-135-0
- Sectors
- Water & Wastewater Treatment, Textiles, Leather & Paper
Aluminum Sulfate (CAS 10043-01-3) is a white, crystalline hydrated aluminum salt, commonly known as alum, available as a powder or in chunks, that acts as a coagulant and flocculant in potable water and wastewater treatment and as an acidifying agent in paper, textile and other industrial processes. Contact Now
Typical Properties
| Molecular formula | Al.3/2H2O4S |
|---|---|
| Molecular weight | 342.15 g/mol |
| Appearance | White powder |
| Form | Powder and/or Chunks |
| Color | White |
| Odor | at 100.00?%. odorless |
| Melting point | 770 °C (decomp) |
| Density | 1.61 g/cm³ |
| Water solubility | soluble |
| GHS signal word | Warning · Corrosive, Irritant / harmful |
| HS code | 28332200 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Aluminum Sulfate
Applications
Used in potable water and wastewater treatment to destabilize colloids and remove suspended solids. In paper production, it enhances sizing and retention. Also employed in dyeing, fireproofing textiles, and as a soil acidifier in horticulture.
Safety & Risks
Mildly acidic and irritating to skin and eyes. Avoid prolonged contact with moisture or alkalis to prevent decomposition. Handle with gloves and goggles.
Packaging
Packed in 25–50 kg polyethylene-lined bags or bulk containers. Store dry, sealed, and away from bases and metallic powders.