Propionic acid
SIAL/81910 - puriss. p.a., ≥99.5% (GC)
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
| assay | ≥99.5% (GC) |
| autoignition temp. | 955 °F |
| bp | 141 °C (lit.) |
| cation traces | Al: ≤0.5 mg/kg |
| Ba: ≤0.1 mg/kg | |
| Bi: ≤0.1 mg/kg | |
| Ca: ≤0.5 mg/kg | |
| Cd: ≤0.05 mg/kg | |
| Co: ≤0.02 mg/kg | |
| Cr: ≤0.1 mg/kg | |
| Cu: ≤0.02 mg/kg | |
| Fe: ≤0.5 mg/kg | |
| K: ≤0.5 mg/kg | |
| Li: ≤0.1 mg/kg | |
| Mg: ≤0.1 mg/kg | |
| Mn: ≤0.02 mg/kg | |
| Mo: ≤0.1 mg/kg | |
| Na: ≤1 mg/kg | |
| Ni: ≤0.1 mg/kg | |
| Pb: ≤0.1 mg/kg | |
| Sr: ≤0.1 mg/kg | |
| Zn: ≤0.1 mg/kg | |
| density | 0.993 g/mL at 25 °C (lit.) |
| expl. lim. | 12.1 % |
| form | liquid |
| functional group | carboxylic acid |
| grade | puriss. p.a. |
| InChI | 1S/C3H6O2/c1-2-3(4)5/h2H2 |
| InChI key | XBDQKXXYIPTUBI-UHFFFAOYSA |
| mp | −24-−23 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| n |
|
| SMILES string | CCC(O)=O |
| solubility | organic solvents: soluble(lit.) |
| water: soluble(lit.) | |
| vapor density | 2.55 (vs air) |
| vapor pressure | 2.4 mmHg ( 20 °C) |
| Application: | Propionic acid may be used in the synthesis of cellulose propionate (cellulose ester). |
| General description: | Propionic acid is a linear monocarboxylic acid. It affords esters on reaction with alcohols or alkenes. It can be synthesized by reacting ethane, carbon monoxide and water. It participates as a precursor in the preparation of smallest azolium homoenolate intermediate. |
| 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% (GC) |
| bp | 141 °C (lit.) |
| mp | −24-−23 °C (lit.) |
| Density | 0.993 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |