Potassium propanoate or potassium propionate has formula K(C2H5COO). Its melting point is 410 °C. It is the potassium salt of propanoic acid.
Names | |
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Preferred IUPAC name Potassium propanoate | |
Other names Potassium propionate; E283 | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.005.749 |
EC Number |
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E number | E283 (preservatives) |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C3H5KO2 | |
Molar mass | 112.1689 g/mol |
Appearance | Colorless crystalline platelets[1] |
Melting point | >300 °C[1] |
soluble[1] | |
Solubility in ethanol | soluble[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Use
It is used as a food preservative and is represented by the food labeling E number E283 in Europe[2] and by the INS number 283 in Australia and New Zealand.[3]