Propionic acid
ALDRICH/W292400 - ≥99.5%, FCC, FG
Synonym: Acid C3; Propanoic acid; Propanyl acid
CAS Number: 79-09-4
Empirical Formula (Hill Notation): C3H6O2
Molecular Weight: 74.08
EC Number: 201-176-3
MDL Number: MFCD00002756
Linear Formula: CH3CH2COOH
Product Type: Chemical
| agency | follows IFRA guidelines |
| meets purity specifications of JECFA | |
| application(s) | flavors and fragrances |
| assay | ≥99.5% |
| autoignition temp. | 955 °F |
| biological source | synthetic |
| bp | 141 °C |
| 141 °C (lit.) | |
| density | 0.993 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| expl. lim. | 12.1 % |
| food allergen | no known allergens |
| fragrance allergen | no known allergens |
| grade | FG |
| Fragrance grade | |
| Halal | |
| Kosher | |
| InChI | 1S/C3H6O2/c1-2-3(4)5/h2H2 |
| InChI key | XBDQKXXYIPTUBI-UHFFFAOYSA |
| mp | −24-−23 °C (lit.) |
| organoleptic | dairy; pungent; acidic |
| Quality Level | 400  |
| refractive index | n |
| reg. compliance | EU Regulation 1223/2009 |
| EU Regulation 1334/2008 & 178/2002 | |
| FCC | |
| FDA 21 CFR 178.1010 | |
| FDA 21 CFR 184.1081 | |
| SMILES string | CCC(O)=O |
| solubility | H2O: soluble |
| vapor density | 2.55 (vs air) |
| vapor pressure | 2.4 mmHg ( 20 °C) |
| General description: | Propionic acid (PA) is a naturally occurring carboxylic acid, which in its pure state exists as a colorless corrosive liquid with an unpleasant odor. It is miscible in water. Industrially it is produced by hydrocarboxylation of ethylene in presence nickel carbonyl as a catalyst. PA has been found to reduce food intake, lower the fatty acids content in plasma and liver, might improve tissue insulin sensitivity and exerts immunosuppressive actions. Propionic acid is an excellent raw material as it is stable, cheap and safe and can even be used as a food additive. |
| General description: | Propionic acid is a volatile fatty acid (VFA) formed in the rumen of ruminants by bacterial fermentations. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 10, 25 kg in composite drum |
| Symbol |    GHS02,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H226 - H314 - H335 |
| Precautionary statements | P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 10-34-37 |
| Safety Statements | 23-36-45 |
| RIDADR | UN3463 - class 3 - Propionic acid |
| WGK Germany | WGK 1 |
| Flash Point(F) | 129.2 °F - closed cup |
| Flash Point(C) | 54 °C - closed cup |
| Purity | ≥99.5% |
| bp | 141 °C (lit.); 141 °C |
| mp | −24-−23 °C (lit.) |
| Density | 0.993 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| FEMA Number | 2924 |
| UNSPSC | 12164502 |