Potassium Hydroxide
KOH, Potassium Hydrate, Caustic Potash
- CAS
- 1310-58-3
- EC
- 215-181-3
- Sectors
- Personal Care & Cosmetics, Oil, Gas & Energy, Pharma & Healthcare
Potassium Hydroxide (CAS 1310-58-3) is a deliquescent inorganic base, commonly called caustic potash, that appears as a white powder, dissolves in water with intense heat evolution to form a strong alkaline solution, and is used in soap and detergent production, biodiesel manufacture and pharmaceutical pH regulation.
Typical Properties
| Molecular formula | HKO |
|---|---|
| Molecular weight | 56.11 g/mol |
| Form | powder |
| Color | white |
| Odor | Odorless |
| Melting point | 380 °C |
| Boiling point | 1327 °C |
| Density | 2.044 g/cm³ |
| Water solubility | soluble |
| Flash point | 52 °F |
| pH | 14 (56g/l, H2O, 20°C) |
| GHS signal word | Danger · Corrosive, Acute toxicity, Irritant / harmful, Health hazard |
| HS code | 28152000 |
| 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.
Potassium Hydroxide
Applications
Used in soap and detergent production, biodiesel manufacture, and electrolyte solutions. It serves as a neutralizing and saponification agent in chemical synthesis and as a catalyst in biodiesel transesterification. In pharmaceuticals, it acts as a pH regulator.
Safety & Risks
Corrosive to skin, eyes, and metals. Avoid contact with acids or organic materials. Use protective gloves, goggles, and ventilation during handling.
Packaging
Delivered in 25 kg HDPE-lined PP bags or 1,000 kg big bags. Store in dry, cool conditions, away from acids, aluminum, and moisture sources.