109797

Propionic acid

99%

• 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: 329749256
• NACRES: NA.22

Properties

• vapor density: 2.55 (vs air)
• Quality Level: 100
• vapor pressure: 2.4 mmHg ( 20 °C)
• assay: 99%
• form: liquid
• autoignition temp.: 955 °F
• expl. lim.: 12.1 %
• refractive index: n20/D 1.386 (lit.)
• bp: 141 °C (lit.); 141 °C
• 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

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