333379 Sigma-Aldrich

Potassium ethoxide





Potassium ethoxide can be used:
• As a catalyst for transesterification reactions for the synthesis of biodiesel.
• To synthesize nitrogen doped carbon nano-sheets to be used as an anode in sodium ion batteries.
• To promote the arylation reaction of unactivated arenes to synthesize biaryl compounds.
• As a precursor for the synthesis of thin films of (Na0.5K0.5)NbO3 (NKN) and K3Li2Nb5O15 (KLN).
• For ethoxylation of p-chloronitrobenzene in the presence of phase transfer catalysts.


100, 500 g in glass bottle

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Reacts violently with water.
UN 3206 8(4.2) / PGII
WGK Germany 


Certificate of Analysis


Certificate of Origin


Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
The MSDS for Product 333379, Potassium ethoxide, says it needs to be handled and stored under an inert gas. However, there isn't a glove box on site. How could we handle the product?
Since the product is air and moisture sensitive, we would recommend using one of our Atmosbags as a cost-effective way to handle the product under argon or nitrogen.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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