Potassium propanoate

Potassium propanoate

Names
Other names Potassium propionate; E283
Identifiers
CAS Number	327-62-8
3D model (Jmol)	Interactive image
ChemSpider	64232
ECHA InfoCard	100.005.749
EC Number	206-323-5
E number	E283 (preservatives)
PubChem	23663619
InChI InChI=1S/C3H6O2.K/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1 Key: BWILYWWHXDGKQA-UHFFFAOYSA-M InChI=1/C3H6O2.K/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1 Key: BWILYWWHXDGKQA-REWHXWOFAC
SMILES CCC(=O)[O-].[K+]
Properties
Chemical formula	C3H5KO2
Molar mass	112.1689 g/mol
Appearance	Colorless crystalline platelets[1]
Melting point	>300 °C[1]
Solubility in water	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).
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Infobox references

Potassium propanoate or potassium propionate has formula K(C₂H₅COO). Its melting point is 410 °C. It is the potassium salt of propanoic acid.

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]

References

1. J. I. G. Cadogan, J. Buckingham, F. MacDonald: Dictionary of Organic Compounds: First Supplement. CRC Press, 1996, ISBN 978-0-412-54110-0
2. UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
3. Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.