Butanoic acid, 2-methyl-, 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-123.35 ± 0.34kcal/molCcbVerevkin, Beckhaus, et al., 1992See 90BEC/VER
Δfgas-124.9 ± 2.1kcal/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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-133.94 ± 0.33kcal/molCcbVerevkin, Beckhaus, et al., 1992See 90BEC/VER; ALS
Quantity Value Units Method Reference Comment
Δcliquid-1002.62 ± 0.32kcal/molCcbVerevkin, Beckhaus, et al., 1992See 90BEC/VER; Corresponding Δfliquid = -133.94 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-1001.1 ± 2.0kcal/molCcbHancock, Watson, et al., 1954Reanalyzed by Cox and Pilcher, 1970, Original value = -1001. kcal/mol; Heat of formation derived by Cox and Pilcher, 1970; Corresponding Δfliquid = -135.46 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
78.25298.15Verevkin, Beckhaus, et al., 1992DH

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:
BS - Robert L. Brown and Stephen E. Stein
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.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil406.2KN/AAldrich Chemical Company Inc., 1990BS
Tboil406.05KN/AHancock, Watson, et al., 1954, 2Uncertainty assigned by TRC = 0.4 K; TRC
Quantity Value Units Method Reference Comment
Δvap10.59 ± 0.07kcal/molVVerevkin, Beckhaus, et al., 1992See 90BEC/VER; ALS
Δvap10.6kcal/molN/AVerevkin, Beckhaus, et al., 1992DRB
Δvap15.5kcal/molGSVerevkin, Beckhaus, et al., 1992Based on data from 288. to 308. K.; AC
Δvap10.6 ± 0.3kcal/molVHancock, Watson, et al., 1954Heat of formation derived by Cox and Pilcher, 1970; ALS

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

Go To: Top, Gas phase thermochemistry data, 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.

Verevkin, Beckhaus, et al., 1992
Verevkin, S.P.; Beckhaus, H.-D.; Ruchardt, C., Geminale substituenteneffekte Teil 5α. Standardbildungsenthalpien von alkylsubstituierten Malonsaure- und α-aminocarbonsaureestern, Thermochim. Acta, 1992, 197, 27-39. [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]

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

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [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]


Notes

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