Potassium hydroxide Basic information
Product Name: Potassium hydroxide
Synonyms: POTASH;POTASH CAUSTIC;POTASH LYE;POTASSIUM HYDRATE;POTASSIUM HYDROXIDE STANDARD;POTASSIUM HYDROXIDE;POTASSIUM HYDROXIDE;inorganic chemicals;salts;ETHANOLIC;hydroxydedepotassium(solide)
CAS: 1310-58-3
MF: KOH
MW: 56.11
EINECS: 215-181-3
Mol File: 1310-58-3.mol
Potassium hydroxide Chemical Properties
Melting point 361 °C (lit.)
Boiling point 1320°C
density 1.450 g/mL at 20 °C
vapor pressure 1 mm Hg ( 719 °C)
refractive index n20/D 1.421
Fp 52 °F
storage temp. Store at +5°C to +30°C.
solubility H2O: 1 M at 20 °C, clear, colorless
form powder
color white
Specific Gravity 1.09
Odor Odorless
PH 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);
explosive limit 3.5-15.0%(V) (ethanol)
Water Solubility soluble
Sensitive Air Sensitive & Hygroscopic
Merck 14,7640
Exposure limits Ceiling in air 2 mg/m3 (ACGIH).
Dielectric constant 3.3(Ambient)
Stability: Stable, but very hygr…