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Pentanoic acid, ethyl 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Deltafgas-507. ± 2.kJ/molCmWiberg and Waldron, 1991Heat of hydrolysis; ALS
Deltafgas-507.7kJ/molN/AHancock, Watson, et al., 1954Value computed using «DELTA»fHliquid° value of -553.8±2.5 kj/mol from Hancock, Watson, et al., 1954 and «DELTA»vapH° value of 46.1 kj/mol from Schjanberg, 1937.; DRB
Deltafgas-507. ± 3.kJ/molCcbSchjanberg, 1937Heat of formation derived by Cox and Pilcher, 1970; ALS

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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
Deltafliquid-554.1 ± 0.8kJ/molCmWiberg and Waldron, 1991Heat of hydrolysis
Deltafliquid-553.8 ± 2.5kJ/molCcbHancock, Watson, et al., 1954Reanalyzed by Cox and Pilcher, 1970, Original value = -552. kJ/mol
Deltafliquid-553.1 ± 8.4kJ/molCcbSchjanberg, 1937Heat of formation derived by Cox and Pilcher, 1970
Quantity Value Units Method Reference Comment
Deltacliquid-4201.6 ± 2.5kJ/molCcbHancock, Watson, et al., 1954Reanalyzed by Cox and Pilcher, 1970, Original value = -4201. kJ/mol; Corresponding «DELTA»fliquid = -553.79 kJ/mol (simple calculation by NIST; no Washburn corrections)
Deltacliquid-4202.4 ± 2.5kJ/molCcbSchjanberg, 1937Reanalyzed by Cox and Pilcher, 1970, Original value = -4197. ± 8. kJ/mol; At 293; Corresponding «DELTA»fliquid = -552.96 kJ/mol (simple calculation by NIST; no Washburn corrections)

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.

Wiberg and Waldron, 1991
Wiberg, K.B.; Waldron, R.F., Lactones. 2. Enthalpies of hydrolysis, reduction, and formation of the C4-C13 monocyclic lactones. strain energies and conformations, J. Am. Chem. Soc., 1991, 113, 7697-7705. [all data]

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]

Schjanberg, 1937
Schjanberg, E., Die verbrennungswarmen und die refraktionsdaten einiger pentensaureeste, Z. Phys. Chem., 1937, 178, 274-281. [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]


Notes

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