My watch list  

Sodium propionate

Sodium propionate[1]
IUPAC name Sodium propanoate
Other names Sodium propionate
CAS number 137-40-6
PubChem 8724
SMILES CCC(=O)[O-].[Na+]
Molecular formula C3H5NaO2
Molar mass 96.07
Appearance Transparent crystals
Melting point

289 °C

Solubility in water ~1 g/mL
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Sodium propionate or sodium propanoate is the sodium salt of propionic acid which has the chemical formula Na(C2H5COO).

Additional recommended knowledge


It is used as a food preservative and is represented by the food labeling E number E281 in Europe. It is used primarilly as a mold inhibitor in bakery products.


  1. ^ Merck Index, 11th Edition, 8623.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sodium_propionate". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE