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Potassium Hydroxide

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Potassium Hydroxide
Chemical Product

Potassium Hydroxide

Molecular FormulaKOH CAS1310-58-3 Molecular Weight56.11 g/mol g/mol
SynonymsCaustic Potash, Lye, KOH
Safety & Hazards (GHS) Danger
Corrosive Corrosive Acute toxic Acute toxic Irritant Irritant Health hazard Health hazard

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Potassium Hydroxide (KOH) is a white, highly caustic solid available in flake or pellet form. It is highly soluble in water, forming a strong alkaline solution. KOH is widely used in chemical manufacturing, soaps, fertilizers, and battery production due to its strong reactivity.
- Soap & Detergents: Used in the production of liquid soaps and soft soaps. - Chemical Industry: A key raw material in various chemical processes. - Fertilizer Manufacturing: Used as a potassium source in agriculture. - Battery Industry: Found in alkaline battery electrolytes. - Water Treatment: Used for pH control and neutralization.
AppearanceWhite solid flakes or pellets
OdorOdorless
Molecular FormulaKOH
Molecular Weight56.11 g/mol
Melting Point360 °C
Density2.12 g/cm³
SolubilityHighly soluble in water
pH (1% solution)~13.5
Chemical StabilityStable under normal conditions
IUPAC Namepotassium hydroxide
Molecular FormulaKOH
Molecular Weight56.11 g/mol g/mol
SMILES[OH-].[K+]
InChIKeyKWYUFKZDYYNOTN-UHFFFAOYSA-M
  • H290 May be corrosive to metals
  • H301 Toxic if swallowed
  • H302 Harmful if swallowed
  • H304 May be fatal if swallowed and enters airways
  • H314 Causes severe skin burns and eye damage
  • H318 Causes serious eye damage
  • H370 Causes damage to organs
  • H372 Causes damage to organs through prolonged or repeated exposure
  • H402 Harmful to aquatic life

⚠️ For information only; not a substitute for the official SDS.

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