Propanoic acid

• Formula: C₃H₆O₂
• Molecular weight: 74.0785
• IUPAC Standard InChI: InChI=1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5) Copy

  
• IUPAC Standard InChIKey: XBDQKXXYIPTUBI-UHFFFAOYSA-N Copy
• CAS Registry Number: 79-09-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Propionic acid; Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Luprisol; Luprosil; Metacetonic acid; Prozoin; Pseudoacetic acid; C2H5COOH; Methylacetic acid; Acide propionique; Kyselina propionova; Propionic acid grain preserver; Sentry grain preserver; Tenox P grain preservative; UN 1848; MonoProp; Antischim B; Propkorn; Propcorn; n-Propionic acid
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• Information on this page:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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  • Gas Phase Kinetics Database
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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Lebedeva, 1964
Lebedeva, N.D., Heats of combustion of monocarboxylic acids, Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]

Schjanberg, 1935
Schjanberg, E., Die Verbrennungswarmen und die Refraktionsdaten einiger chlorsubstituierter Fettsauren und Ester., Z. Phys. Chem. Abt. A, 1935, 172, 197-233. [all data]

Martin and Andon, 1982
Martin, J.F.; Andon, R.J.L., Thermodynamic properties of organic oxygen compounds. Part LII. Molar heat capacity of ethanoic, propanoic, and butanoic acids, J. Chem. Thermodynam., 1982, 14, 679-688. [all data]

Biros, Sikora, et al., 1982
Biros, J.; Sikora, A.; Zivny, A.; Pouchly, J., Heat capacity of monomer models of some hydrophilic polymers in aqueous solution from 20° to 60°C, Collect Czech. Chem. Commun., 1982, 47(10), 2692-2701. [all data]

Woycicka and Kalinowska, 1978
Woycicka, M.; Kalinowska, B., Excess entahlpy and heat capacities of diluted propionic acid solutions in n-heptane, Bull. Acad. Pol. Sci., Ser. Sci. Chim., 1978, 26, 371-375. [all data]

Konicek and Wadso, 1971
Konicek, J.; Wadso, I., Thermochemical properties of some carboxylic acids, amines and N-substituted amides in aqueous solution, Acta Chem. Scand., 1971, 25, 1541-1551. [all data]

Radulescu and Jula, 1934
Radulescu, D.; Jula, O., Beiträge zur Bestimmung der Abstufung der Polarität des Aminstickstoffes in den organischen Verbindungen, Z. Phys. Chem., 1934, B26, 390-393. [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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