Sodium Propionate

food Preservative E281,CAS no.137-40-6 HS code291550

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E281 Sodium Propionate CAS No. 137-40-6

Product Description



Sodium Propionate, E281, CAS no.137-40-6, a white crystalline solid or powder that is the sodium salt of propionic acid. Sodium Propionate manufacturing process via chemical synthesis propionic acid and sodium carbonate or sodium hydroxide as raw materials. Sodium Propionate is used in the food and beverage industry as a preservative. It prevents the growth of mold and some bacteria, thereby prolonging the shelf life of packaged baked goods. Used as a mold inhibitor in bakery products, such as breads, yogurts, soups, drinking yogurts, canned vegetables, etc. As a professional Sodium Propionate supplier, we supply Sodium Propionate powder food and pharma grade.

CAS No. : 137-40-6
Chemical Formula : C3H5NaO2
H.S.code : 291550
E No. : E281
Other name : Sodium propanoate
Chemical structure  :  Sodium propanoate chemical formular.png

Sodium Propionate powder Specification


Product                                                                Sodium Propionate
CAS 137-40-6 INS 281
Structure   Molecular formula C3H5NaO2
Properties White crystals, particles or crystalline powder;Odorless or slightly ethyl butyrate smell.1g of this
product can be dissolved in 1ml of water,25℃ or 24 ml of ethanol.
Standard   Item GB25549-2010 BP2012 FCCV USP35 EP7.0
Content( dry
99.0%~100.5% 99.0%~101% 99.0%~100.5% 99.0%~100.5% 99.0%~101%
Loss on drying
(Vol. 4)
≤1.0% ≤0.5% ≤1.0% ≤1.0% ≤0.5%
—— Clear, olorless ——– ——– Clear, olorless
PH(10%) —— 7.8~9.2 ——– ——– 7.8~9.2
As(as As203) ≤3 mg/kg ——– ——– ——– ——–
Heavy metals
(as Pb)
≤4 mg/kg ≤10ppm ≤2 mg/kg ≤0.001% ≤10ppm
Fe ≤0.003% ≤10ppm ≤0.003% ——– ≤10ppm
passed test ——– ≤0.15% passed test ——–
Application Have special effect on preventing yellow aspergillin, but little on yeast.EEC approves it used in
dairy products, bakery products, cheese etc..Also can be used as inhibition agent of ticky
substances in beer.
Used as  leavening agent, dough conditioner, buffer, tissue improver, curing agent, nutritional
supplements, chelating agent etc. in the food industry such as leavening agent of baking products
or cakes.Fermentation assistant agent, buffer, pectin curing agent (gel) of bread and biscuit,tissue
modifier of the yeast food meat products.When used in brewing, can increase the saccharifying
power, improve fermentation ability.
Dosage Antibacterial ability is affected by the environmental pH value.At pH 5 the MIC is 0.01%,while
at pH 6.5 is 0.5%.
1.GB 2760-2011(g/kg):Pastry 2.5;Soak Yangmei30~50,impregnated with an aqueous
solution of 3% to 5%,washed before processing ,based on propionic.
2.FAO/WHO(1995):Processed cheese 3000mg/kg。
Packaging Net weight: 25kg,paper-plastic bag or woven bag lined with PE bag,can also be customized
according to customer‘s requirements of packaging.
Storage Stored in cool, dry and ventilated place.Must not be loaded and transported with toxic, hazardous
and polluting substances.

 As a professional Sodium Propionate supplier, we supply Sodium Propionate powder food and pharma grade can provide HAPPC, KOSHER, HALAL Certificates for this product

Price trend of Sodium Propionate

Upstream: Prices of upstream propionic acid and sodium carbonate or sodium hydroxide are stable and supply is stable. Production capacity of the Sodium Propionate manufacturers didn’t change much.
Downstream: Downstream demand is pretty stable.
Forecast: Considering the current market trend, price of Sodium Propionate will be stable in the coming months.

  • Food Grade: Sodium Propionate is widely used as preservatives in food industries.  food grade Sodium Propionate is available as fine powder(>99% purity).

Sodium Propionate gluten free

Yes. Sodium Propionate is gluten free and widely used in gluten free food to provide longer shelf-life to processed cheese, meats, beverages, etc.

Halal Certified Sodium Propionate

Sodium Propionate is sodium salt of propionic acid, available as White crystalline solid or powder. As a synthesized chemical, Sodium Propionate is general recognized as halal. We will still audit another 2 key points to make sure that our Sodium Propionate is 100% halal: Are there any pig products used in manufacturing process of this ingredient? Does the ingredient contain Alcohol (impure) or other haraam ingredients?

Kosher Certified Sodium Propionate

Sodium Propionate is sodium salt of propionic acid, available as White crystalline solid or powder. As a other synthesized chemical ingredients, Sodium Propionate is general recognized as Kosher classified as Parve. Moreover, Sodium Propionate is also regulated as Kosher for Passover.

Sodium Propionate MSDS

  • 5.1. Storage: Store in a cool and dry place and Keep away from strong light and heat
  • 5.2. Handling precaution: Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust.

Side Effect of Sodium Propionate

Sodium Propionate is considered safe by FDA according to existing data and granted GRAS status.

No significant side effects reported.

Generally recognized as safe(GRAS) is a FDA designation that a specific substance or ingredient is generally considered safe by experts, and so is exempted from the usual Federal Food, Drug, and Cosmetic Act (FFDCA) food additive tolerance requirements.

Application and Uses of Sodium Propionate

Sodium Propionate is a sodium salt of propionic acid widely used as preservative in food production. As a preservative, Sodium Propionate can be used in a wide variety of industries including: food production, pharmaceutical, cosmetics, agriculture/animal feed, and various other industries.

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