Potassium Alum Salt
Potassium Aluminum Sulfate, Potash Alum
- CAS
- 10043-67-1
- EC
- 233-141-3
- Sectors
- Water & Wastewater Treatment, Textiles, Leather & Paper, Personal Care & Cosmetics
Potassium Alum Salt (CAS 10043-67-1) is a crystalline double sulfate of potassium and aluminum, also known as potash alum, typically appearing as a white hygroscopic powder with strong astringent and coagulating properties, and it is used in water purification, leather tanning, cosmetics and as a food pickling and firming agent.
Typical Properties
| Molecular formula | Al.2H2O4S.K |
|---|---|
| Molecular weight | 258.21 g/mol |
| Form | white hygroscopic powder |
| Color | white |
| Density | 1.725 g/cm³ |
| Water solubility | g/100g H2O: 3.00 (0°C), 5.90 (20°C), 109 (90°C) [LAN05] |
| Grades available | Food 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.
Potassium Alum Salt
Applications
Used in water purification, leather tanning, and cosmetics as a natural deodorant. In food, it serves as a pickling and firming agent.
Safety & Risks
Non-toxic; avoid inhaling dust. Prolonged exposure may dry skin.
Packaging
Supplied in 25 kg bags or 1,000 kg bulk sacks. Store in cool, dry, and sealed areas.