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HomeProduct name listPotassium methoxide

Potassium methoxide

Synonym(s):Potassium methylate

  • CAS NO.:865-33-8
  • Empirical Formula: CH3KO
  • Molecular Weight: 70.13
  • MDL number: MFCD00012416
  • EINECS: 212-736-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 13:37:16
Potassium methoxide Structural

What is Potassium methoxide?

Chemical properties

solid

The Uses of Potassium methoxide

Potassium methoxide is used as a chemical intermediate. It is also used in biodiesel production and in fuel additives. It acts as a catalyst for the preparation of methyl formate and an alkaline catalyst for dimethyl formamide. Further, it is used as versatile reagents in chemical reactions such as condensation, esterification, alkoxylation and etherification, Claisen condensation, Wolf-Kishner reduction and Stobbe reaction.

Fire Hazard

Flammable solid, igniting in moist air. Rapid addition in bulk amount into halogenated solvents may cause an explosion. Reaction with arsenic pentafluoride in benzene can result in explosion (Kolditz 1965).

Flammability and Explosibility

Flammable

Properties of Potassium methoxide

Melting point: -20°C
Boiling point: 84°C
Density  0.95 g/mL at 20 °C
vapor pressure  0Pa at 25℃
refractive index  n20/D 1.37
Flash point: 7°C
storage temp.  Store below +30°C.
solubility  Soluble in methanol and ethanol.
form  Liquid
pka 15.17[at 20 ℃]
color  Clear colorless
Specific Gravity 0.95
PH 12.8 (7g/l, H2O, 20℃)
Water Solubility  may decompose
Sensitive  Moisture Sensitive
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
BRN  3551544
Exposure limits ACGIH: TWA 200 ppm; STEL 250 ppm (Skin)
OSHA: TWA 200 ppm(260 mg/m3)
NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3)
Stability: Stable. Reacts violently with water. Moisture sensitive. Absorbs carbon dioxide from the air. Incompatible with acids, strong oxidizing agents, acid chlorides, acid anhydrides, alkali metals.
CAS DataBase Reference 865-33-8(CAS DataBase Reference)
EPA Substance Registry System Methanol, potassium salt (865-33-8)

Safety information for Potassium methoxide

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
GHS Hazard Statements H225:Flammable liquids
H314:Skin corrosion/irritation
H370:Specific target organ toxicity, single exposure
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

Computed Descriptors for Potassium methoxide

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