Sodium propionate

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

## Overview

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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.

## Reactions

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

## Uses

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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,[1] USA[2] and Australia and New Zealand[3] (where it is listed by its INS number 281).

## See Also

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

## References

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1. ↑ UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
2. ↑ US Food and Drug Administration: "Listing of Food Additives Status Part II". Retrieved 2011-10-27.
3. ↑ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.

## External links

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* Sodium propanoate at Sci-toys.com

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