Sodium Propionate
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Sodium Propionate


Sodium propionate is used as a food preservative, suitable for use as a preservative in cakes and as an anti-mold agent for bread.



Sodium propionate is White crystalline grain or powder, with little propionic acid smell,stable to heat and light,easily soluble in water.Store in a cool, dry place. Store in an airtight container.

Name of indexSodium PropionateE281
APPEARANCEWhite crystalline or crystalline powderWhite crystalline hygroscopic powder, or a fine white powder
Content99.0-100.5(drying basis)%≥99.0% (105°C,2h)
pH (10 % aqueous   solution)--7.5-10.5
As ≤%--0.0003
Heavy metals ≤%--0.001
Alkalinity (as Na2CO3)Passes test (about   0.15%)--
Loss on drying ≤%14 (105°C,2h)
Water insoluble ≤%--0.1
Iron ≤%0.0030.005
Lead ≤%0.00020.0005
Mercury ≤%--0.0001

Functions and Applications

1. Sodium Propionate is used as liquid sodium propionate wet type acid preservatives, its bacteriostasis affected by PH environment.

2. Sodium Propionate is bounded agent in leather-making so as to improve the uniformity of the alkali resistance force and the tanning of leather.

3. Sodium Propionate can be used as food preservative, sodium acid and acid type, its bacteriostatic effect is influenced by environmental pH value.

4. Sodium Propionate also can be used as food, feed, and anti-corrosion, fungicide.

5. Sodium Propionate also can be used as cosmetics preservatives. To the mold and yeast, it has broad antibacterial effect.

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,USA and Australia and New Zealand(where it is listed by its INS number 281).

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