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14261 Potassium methoxide, 90+%

CAS Number

Stock No. Size Price ($) Quantity Availability
14261-18 50g 27.10
14261-30 250g 95.80
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Potassium methoxide, 90+%


Chemical Properties

Formula Weight
Storage & Sensitivity
Moisture Sensitive. Air Sensitive. Ambient temperatures.
Soluble in methanol and ethanol.


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.


Air and moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with water, acids, strong oxidizing agents, oxygen, acid chlorides, acid anhydrides and alkali metals.

Literature References

Esteban, J.; Domínguez, E.; Ladero, M.; Garcia-Ochoa, F. Kinetics of the production of glycerol carbonate by transesterification of glycerol with dimethyl and ethylene carbonate using potassium methoxide, a highly active catalyst. Fuel Process. Technol. 2015, 138, 243-251.

Garcia-Herrero, I.; Alvarez-Guerra, M.; Irabien, A. CO2 electro-valorization to dimethyl carbonate from methanol using potassium methoxide and the ionic liquid [bmim][Br] in a filter-press electrochemical cell. J. Chem. Technol. Biotechnol. 2014, 90 (8), 1433-1438.

GHS Hazard and Precautionary Statements

Hazard Statements: H290-H302-H314-H335-X

May be corrosive to metals. Harmful if swallowed. Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P234-P235+P410-P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P390-P501c

Keep only in original container. Keep cool. Protect from sunlight. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Do NOT induce vomiting. Wash contaminated clothing before reuse. Absorb spillage to prevent material damage. Dispose of contents/ container to an approved waste disposal plant

Other References

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Harmonized Tariff Code


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