Propionic acid
SIAL/402907 - ACS reagent, ≥99.5%
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
4×100 Slip-cover Can
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Photo is meant to be representative of product you will receive if ordered. Additional information is printed on actual labels and package types are subject to change.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 402907-100ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 402907-500ML.
| analyte chemical class(es) | amino acids |
| assay | ≥99.5% |
| autoignition temp. | 955 °F |
| bp | 141 °C (lit.) |
| cation traces | heavy metals (as Pb): ≤0.001% |
| color | APHA: ≤20 |
| density | 0.993 g/mL at 25 °C (lit.) |
| evapn. residue | ≤0.01% |
| expl. lim. | 12.1 % |
| form | liquid |
| grade | ACS reagent |
| impurities | ≤0.002% Carbonyl compounds |
| ≤0.10% Readily oxidizable substances (as HCOOH) | |
| ≤0.15% water | |
| InChI | 1S/C3H6O2/c1-2-3(4)5/h2H2 |
| InChI key | XBDQKXXYIPTUBI-UHFFFAOYSA |
| mp | −24-−23 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | CCC(O)=O |
| solubility | H2O: soluble |
| vapor density | 2.55 (vs air) |
| vapor pressure | 2.4 mmHg ( 20 °C) |
| Application: | Propionic acid may be used to alter limestone in order to increase its ability of CO2 uptake. |
| General description: | Propionic acid (PA) also known as propanoic acid is a short chain fatty acid mainly used as food preservative. It is one of the main metabolic end product formed during the fermentation of undigested food in the colon by the microbiota. Its manufacture by glycerol/glucose co-fermentation using Propionibacterium acidipropionici has been reported. Crystal structure study reveals that PA crystals are monoclinic with space group P21/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. |
| Packaging: | 100, 4×100, 500 mL in glass bottle |
| 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.) |
| mp | −24-−23 °C (lit.) |
| Density | 0.993 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |