2-Oxopentanedioic acid

• Formula: C₅H₆O₅
• Molecular weight: 146.0981
• IUPAC Standard InChI: InChI=1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10) Copy

  
• IUPAC Standard InChIKey: KPGXRSRHYNQIFN-UHFFFAOYSA-N Copy
• CAS Registry Number: 328-50-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: 2-Ketoglutaric acid; 2-Oxoglutaric acid; α-Ketoglutaric acid; Pentanedioic acid, 2-oxo-; Glutaric acid, 2-oxo-; Glutaric acid, α-keto-; 2-Oxo-1,5-pentanedioic acid; NSC 17391; α-Oxoglutaric acid
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • References
  • Notes
• Other data available:
  • Henry's Law data
  • Mass spectrum (electron ionization)
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes

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

Kobenina and Pobedinskaya, 1983
Kobenina, N.M.; Pobedinskaya, A.I., Standard heats of combustion and formation of cis-aconitic, α-oxoglutaric, and oxalacetic acids, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1983, 26, 1015-1016. [all data]

Wilhoit and Lei, 1965
Wilhoit, R.C.; Lei, I., Thermochemistry of biologically important compounds. Heats of combustion of five organic acids., J. Chem. Eng. Data, 1965, 10, 166-168. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Wilhoit and Lei, 1965, 2
Wilhoit, R.C.; Lei, I., Thermochemistry of Biologically Important Compounds. Heats of Combustion of Five Organic Acids, J. Chem. Eng. Data, 1965, 10, 166. [all data]

Chattopadhyay and Ziemann, 2005
Chattopadhyay, Sulekha; Ziemann, Paul J., Vapor Pressures of Substituted and Unsubstituted Monocarboxylic and Dicarboxylic Acids Measured Using an Improved Thermal Desorption Particle Beam Mass Spectrometry Method, Aerosol Science and Technology, 2005, 39, 11, 1085-1100, https://doi.org/10.1080/02786820500421547 . [all data]

Contineanu, Chivu, et al., 2005
Contineanu, I.; Chivu, L.; Perisanu, S., Revista di Chim., 2005, 56, 7, 719. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, References

• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation

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