P1386

Propionic acid

≥99.5%

• Synonym(s): Acid C₃, Propanoic acid, Propanyl acid
• Linear Formula: CH₃CH₂COOH
• CAS Number: 79-09-4
• Molecular Weight: 74.08
• Beilstein: 506071
• EC Number: 201-176-3
• MDL number: MFCD00002756
• eCl@ss: 39021305
• PubChem Substance ID: 329820094
• NACRES: NA.21

Properties

• vapor density: 2.55 (vs air)
• Quality Level: 200
• vapor pressure: 2.4 mmHg ( 20 °C)
• Assay: ≥99.5%
• autoignition temp.: 955 °F
• expl. lim.: 12.1 %
• impurities: ≤0.25% water (Karl Fischer)
• color: ≤10, APHA:
• refractive index: n20/D 1.386 (lit.)
• bp: 141 °C (lit.)
• mp: −24-−23 °C (lit.)
• density: 0.993 g/mL at 25 °C (lit.)
• SMILES string: CCC(O)=O
• InChI: 1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
• InChI key: XBDQKXXYIPTUBI-UHFFFAOYSA-N

Description

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.

Safety Information

• Pictograms: GHS02,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H226 - H314 - H335
• Precautionary Statements: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 129.2 °F - closed cup
• Flash Point(C): 54 °C - closed cup