Potassium hydroxide (or caustic potash) is a white odourless solid. Soluble in alcohol and glycerine, insoluble in acetone and ether. Uses: Soap making, bleach, making oxalic acid and potassium salts, reagent in analytical chemistry, matches, etching, electrolyte in alkaline storage batteries and some fuel cells, carbon dioxide and hydrogen sulphide absorber, laboratory reagent.
IDENTIFICATION AND PROPERTIES POTASSIUM HYDROXIDE
Name: Potassium Hydroxide
Synonyms: Caustic potash, potassium hydroxide
Chemical formula: KOH
CAS: 1310-58-3
EC: 215-181-3
- Odour: Odourless
- pH: >14 (10g/100ml)
- Melting point: 360ºC
- Boiling point/boiling range: 1320ºC
- Flammability (solid, gas): Non-flammable and non-combustible
- Relative density: 2.04
- Solubility: Soluble in alcohol and glycerine. Insoluble in ammonia and ether.
- Water solubility : Soluble
- Partition coefficient (n-octanol/water): -3.88
- Viscosity: Not relevant (solid matter)
- Explosive properties: Non-explosive. According to column 2 of Annex VII of REACH, this study is not necessary because: There are no chemical groups associated with explosive properties in the molecule.
- Oxidising properties: According to column 2 of Annex VII of REACH, this study is not necessary because: the substance, due to its chemical structure, cannot react exothermically with combustible materials.
USES
- Manufacture of glues, adhesives and thinners.
- Degreasing agent.
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