Formula: | KOH |
CAS Number: | 1310-58-3 |
EC Number (EINECS): | 215-181-3 |
HS Code: | 28152000 |
UN Number: | 1814 |
IUPAC Name: | Potassium Hydroxide |
Also Known As: | Caustic Potash Solution |
Molecular Weight, g/mol: | 56.11 |
Appearance: | Clear, colorless to slightly hazy liquid |
Odor: | Odorless |
Boiling Point, °C: | ~135 (depends on concentration) |
Density, g/cm³ (at 20°C): | ~1.45 |
Solubility: | Miscible with water (exothermic) |
pH (1% solution): | ~13.5 |
Packaging: | 200kg drums, 1000kg IBC, bulk tankers |
Primary Applications
Soap and detergent manufacturing
Biodiesel production (transesterification catalyst)
Neutralizing agent in chemical processes
Secondary Applications
Used in fertilizers and agrochemicals
Cleaning agents and degreasers
Metal processing (pickling, electroplating)
Pharmaceutical and cosmetic intermediate
End Industries Served: Soaps & Detergents, Biodiesel, Chemicals, Fertilizers, Metal Finishing, Pharmaceuticals, Cosmetics
Hazard Class (GHS): Corrosive (Category 1A)
Hazard Statements (H-Codes):
H314: Causes severe skin burns and eye damage
H290: May be corrosive to metals
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection
P301 + P330 + P331: IF SWALLOWED – rinse mouth, do not induce vomiting
P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
P310: Immediately call a POISON CENTER/doctor
Storage Conditions
Store in tightly closed containers
Protect from moisture, carbon dioxide, and incompatible materials (acids, aluminum, zinc)
Store at ambient temperature, ventilated area
Transport Information
ADR/RID: Class 8, UN1814, PG II
IMDG: Class 8, UN1814
IATA: Class 8, UN1814