Sodium propionate CAS 137-40-6

Product name: Sodium Propionate
English alias: Propionic acid sodium salt; Sodium propanoate
CAS: 137-40-6
Molecular formula: C3H5NaO2
Appearance: White crystalline powder or granules
Package: 25kg/bag

What is Sodium Propionate？

Sodium Propionate is the sodium salt of propionic acid, commonly used as a food preservative and mold inhibitor. It is highly effective in preventing the growth of mold and some bacteria, making it ideal for use in baked goods, processed cheese, and other food products. Sodium Propionate is considered a safe, non-toxic additive and does not affect the flavor or texture of food. Due to its excellent antifungal properties, it is also used in animal feed. The chemical formula is C3H5NaO2, and it appears as a white crystalline powder or granules with slight hygroscopicity and a faint odor of propionic acid.

COA:

Number	Item	Specification	Result
1	Appearance	White crystalline powder	Conforms
2	Content (dried substance) /%	98.0 - 100.5	99.24
3	Loss on drying /%	≤ 1.0	0.96
4	pH (10% aqueous solution)	7.5 – 10.5	8.7
6	Free acid or free alkalinity	PASS	PASS
7	Heavy metals (Pb) /mg/kg	≤ 0.0003%	<0.0003%
8	Iron (Fe) /%	≤ 0.003	<0.005
9	Fluoride (F) /%	≤ 0.003%	<0.005%
	Conclusion		PASS

Application:

1 Used as a preservative in baked goods such as bread, cakes, and pastries to prevent mold growth
2 Used in processed cheese, dairy products, and meat to inhibit microbial spoilage
3 Used in animal feed to extend shelf life and prevent fungal contamination
4 Used in pharmaceuticals as a stabilizing and antifungal agent
5 Applied in cosmetics and personal care products as a preservative
6 Used in industrial applications where antifungal activity is required

Preservative:

Its primary use is as a mold inhibitor in baked goods and other food products.

Flavoring agent:

It can be used as a flavoring agent in food.

Antimicrobial agent:

Acts as an antimicrobial agent in addition to its preservative role.

Safety profile:

Sodium Propionate is generally recognized as safe (GRAS) and is non-toxic in approved amounts. It is well tolerated by the body and does not accumulate. However, it may cause mild irritation in sensitive individuals. It is biodegradable and does not pose environmental risks under normal use. A patch test is recommended for cosmetic applications.

Storage requirements:

Keep the product dry
Relative humidity < 50%
Protect product against moisture, contamination, and direct sunlight

Transport & Packaging:

Sodium Propionate is supplied in moisture-proof packaging suitable for transport and storage.
It is commonly packed in 25kg bags, with options for jumbo bags (500kg or 1000kg) upon request.