Sodium propionate

Short description: Chemical compound

Sodium propionate[1]

Names
Preferred IUPAC name

Sodium propanoate

Other names

Sodium propionate
Napropion
E281

Identifiers

CAS Number

* 137-40-6 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:132106 N

ChEMBL |

* ChEMBL500826 Y

ChemSpider |

* 8399 Y

EC Number |

* 205-290-4

PubChem CID

* 8724

UNII |

* DK6Y9P42IN Y

InChI

* InChI=1S/C3H6O2.Na/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1 Y

Key: JXKPEJDQGNYQSM-UHFFFAOYSA-M Y

* InChI=1/C3H6O2.Na/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1

Key: JXKPEJDQGNYQSM-REWHXWOFAH

SMILES

* [Na+].[O-]C(=O)CC

Properties

Chemical formula

| C3H5NaO2
Molar mass | 96.060 g/mol
Appearance  | Transparent crystals
Odor | faint acetic-butyric odor
Melting point |  289 °C (552 °F; 562 K)

Solubility in water

| 1 g/ml
Solubility in ethanol | 41.7 g/L
Pharmacology
1=ATC code }}  | S01AX10 (WHO) QA16QA02 (WHO)

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

Tracking categories (test):

* SizeSet

Sodium propanoate or sodium propionate is the sodium salt of propionic acid which has the chemical formula Na(C2H5COO). This white crystalline solid is deliquescent in moist air.

## Contents

* 1 Reactions
* 2 Uses
* 3 See also
* 4 References
* 5 External links

## Reactions

It is produced by the reaction of propionic acid and sodium carbonate or sodium hydroxide.

## Uses

It is used as a food preservative and is represented by the food labeling E number E281 in Europe; it is used primarily as a mold inhibitor in bakery products. It is approved for use as a food additive in the EU,[2] USA[3] and Australia and New Zealand[4] (where it is listed by its INS number 281).

## See also

* Propionic acid, E 280
* Calcium propionate, E 282
* Potassium propionate, E 283

## References

1. ↑ Merck Index, 11th Edition, 8623.
2. ↑ UK Food Standards Agency: "Current EU approved additives and their E Numbers". http://www.food.gov.uk/safereating/chemsafe/additivesbranch/enumberlist. Retrieved 2011-10-27.
3. ↑ US Food and Drug Administration: "Listing of Food Additives Status Part II". https://www.fda.gov/Food/FoodIngredientsPackaging/FoodAdditives/ucm191033.htm#ftnT. Retrieved 2011-10-27.
4. ↑ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". http://www.comlaw.gov.au/Details/F2011C00827. Retrieved 2011-10-27.

## External links

* Sodium propanoate at Sci-toys.com

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*[CID]: Compound ID