Sodium propionate
CAS 137-40-6
EC 205-290-4
Formula C3H6O2.Na
MW 96.06 g/mol
Salts & Minerals Food & NutritionAgriculture & FeedPharmaceuticals & HealthcarePersonal Care & Cosmetics pH Regulation & BufferingPreservation & BiocideCatalysis
Description
Sodium propionate (CAS 137-40-6) is the sodium salt of propionic acid, registered as food additive E281 and sold under trade names including Mycoban, Impedex, Bioban-S, and Deketon. It carries EC number 205-290-4 and molecular formula C3H6O2.Na.
In baked goods and dairy products, it inhibits mould and rope-forming bacteria by disrupting microbial cell metabolism at low concentrations, extending shelf life without affecting yeast activity. In pharmaceutical tablet manufacturing it functions as a pH buffer, and in personal care formulations it acts as a skin conditioner and mild preservative at controlled concentrations.
Sodium propionate is available in food-grade (FCC), pharmaceutical-grade (Ph.Eur.), and feed-grade specifications. It is fully REACH-registered and compliant with EU food additive regulation EC 1333/2008 under E281. Standard packaging includes 25 kg bags, with bulk options available depending on grade. HS code: 29159000.
In baked goods and dairy products, it inhibits mould and rope-forming bacteria by disrupting microbial cell metabolism at low concentrations, extending shelf life without affecting yeast activity. In pharmaceutical tablet manufacturing it functions as a pH buffer, and in personal care formulations it acts as a skin conditioner and mild preservative at controlled concentrations.
Sodium propionate is available in food-grade (FCC), pharmaceutical-grade (Ph.Eur.), and feed-grade specifications. It is fully REACH-registered and compliant with EU food additive regulation EC 1333/2008 under E281. Standard packaging includes 25 kg bags, with bulk options available depending on grade. HS code: 29159000.
Physical Properties
| Melting Point | 289 °C |
| Density | 1.51[at 20℃] |
| Appearance | white powder |
| Color | White |
| Odor | at 100.00?%. bland |
| Form | Crystalline Powder |
| Water Solubility | 995 g/L (20 ºC) |
| Vapor Pressure | 0Pa at 20℃ |
| pH | 8-9.5 (10g/l, H2O, 20℃) |
| Log P | -3.23 at 25℃ |
Safety & Handling (Learn More)
Warning GHS05 GHS07 GHS09
H
H302H312H317H318H319H411
P
P261P264P270P272P273P280P317P321P330P391P501P264+P265P301+P317P302+P352P333+P317P337+P317P362+P364P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29159000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
sodium propanoateE281propionic acid sodium saltsodium propionate anhydrousImpedexdeketonMycoban
Related Products
Raw Materials
Derivatives
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