2-Oxopentanedioic acid

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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

Quantity Value Units Method Reference Comment
Δfsolid-245.672kcal/molCcbKobenina and Pobedinskaya, 1983 
Δfsolid-245.26 ± 0.21kcal/molCcbWilhoit and Lei, 1965Reanalyzed by Cox and Pilcher, 1970, Original value = -245.35 ± 0.21 kcal/mol
Quantity Value Units Method Reference Comment
Δcsolid-430.476kcal/molCcbKobenina and Pobedinskaya, 1983Corresponding Δfsolid = -244.725 kcal/mol (simple calculation by NIST; no Washburn corrections)
Δcsolid-429.94 ± 0.20kcal/molCcbWilhoit and Lei, 1965Reanalyzed by Cox and Pilcher, 1970, Original value = -429.49 kcal/mol; Corresponding Δfsolid = -245.26 kcal/mol (simple calculation by NIST; no Washburn corrections)

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

Quantity Value Units Method Reference Comment
Tfus390.9KN/AWilhoit and Lei, 1965, 2Uncertainty assigned by TRC = 1. K; TRC
Tfus388.45KN/AWilhoit and Lei, 1965, 2Uncertainty assigned by TRC = 1.5 K; TRC

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
23.9269. - 285.TPTDChattopadhyay and Ziemann, 2005Values based on TPTD method are not consistent with values determined by other experimental methods; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
6.833388.7DSCContineanu, Chivu, et al., 2005AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
1.0×10+9 EN/AValue obtained by missing citation using the group contribution method.

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Chemical Concepts
NIST MS number 221040

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Mass spectrum (electron ionization), 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, Henry's Law data, Mass spectrum (electron ionization), References