Butanoic acid, 2-methyl-, methyl ester

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Gas 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
Δfgas-492.5 ± 7.5kJ/molCcbHancock, Watson, et al., 1954Heat of formation derived by Cox and Pilcher, 1970

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
Δfliquid-534.3 ± 7.1kJ/molCcbHancock, Watson, et al., 1954Heat of formation derived by Cox and Pilcher, 1970
Quantity Value Units Method Reference Comment
Δcliquid-3541.8 ± 7.1kJ/molCcbHancock, Watson, et al., 1954Reanalyzed by Cox and Pilcher, 1970, Original value = -3540. kJ/mol; Corresponding Δfliquid = -534.30 kJ/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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tboil389.05KN/AHancock, Watson, et al., 1954, 2Uncertainty assigned by TRC = 0.4 K; TRC
Tboil388.KN/ALiu, 1952Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Δvap42. ± 1.kJ/molEHancock, Watson, et al., 1954Heat of formation derived by Cox and Pilcher, 1970; ALS
Δvap41.8kJ/molN/AHancock, Watson, et al., 1954DRB

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:


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.

Hancock, Watson, et al., 1954
Hancock, C.K.; Watson, G.M.; Gilby, R.F., Heats of combustion of five-carbon fatty acids and their methyl and ethyl esters, J. Phys. Chem., 1954, 58, 127-129. [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]

Hancock, Watson, et al., 1954, 2
Hancock, C.K.; Watson, G.M.; Gilby, R.F., Heats of Combustion of Five-Carbon Fatty Acids and Their Methyl and Ethyl Esters, J. Phys. Chem., 1954, 58, 127. [all data]

Liu, 1952
Liu, S.-L., Fatty Acids from Lanolin, Essays and Papers in Memory of Late President Fu Ssu-Nien 199-213 1952, 1952. [all data]


Notes

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