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KOH

Potassium hydroxide

IUPAC : Potassium hydroxide
HydroxideBaseIndustrialLaboratory

Strong base analogous to sodium hydroxide, used to make soft (liquid) soaps and as electrolyte in alkaline batteries.

3D ball-and-stick representation of Potassium hydroxide (formula KOH). Constituent atoms: K, O, H.
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Physical properties

Molar mass56.1056 g/mol
State at 20 °Csolid
Density2.044 g/cm³
Melting point679.00 K (406 °C)
Boiling point1600.00 K (1327 °C)
Solubility (H₂O)121 g/100 mL à 25 °C

Structure

Crystal systemMonoclinic
3D render modeBall-and-stick

Uses and applications

  • Manufacture of liquid soaps and detergents
  • Alkaline battery electrolyte
  • Biodiesel production (transesterification)
  • Food industry (cocoa processing)

Safety (GHS)

GHS05 · CorrosiveGHS07 · Harmful / irritant
H statements : H302, H314

Highly corrosive. Causes severe burns. Harmful if swallowed.

Constituent elements

19K
Potassium
8O
Oxygen
1H
Hydrogen

References

PubChem CID14797
CAS1310-58-3
SMILES[K+].[OH-]
Sources : PubChem CID 14797 · CRC Handbook of Chemistry and Physics