Butane, 2,2,3,3-tetramethyl-

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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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-54.06kcal/molN/AGood, 1972Value computed using ΔfHsolid° value of -269.1±1.2 kj/mol from Good, 1972 and ΔsubH° value of 42.9 kj/mol from Prosen and Rossini, 1945.; DRB
Δfgas-53.99 ± 0.46kcal/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
gas93.05 ± 0.30cal/mol*KN/AScott D.W., 1952GT

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
31.040200.Scott D.W., 1974Recommended values were obtained from the consistent correlation scheme for alkanes [ Scott D.W., 1974, 2, Scott D.W., 1974]. This approach gives a good agreement with experimental data available for alkanes. However, large uncertainties could be expected at high temperatures.; GT
41.260273.15
44.7 ± 0.1298.15
45.000300.
58.320400.
70.210500.
80.600600.
89.699700.
97.801800.
104.90900.
111.201000.
116.801100.
121.801200.
126.001300.
130.001400.
134.001500.

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.

Good, 1972
Good, W.D., The enthalpies of combustion and formation of n-octane and 2,2,3,3-tetramethylbutane, J. Chem. Thermodyn., 1972, 4, 709-714. [all data]

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Scott D.W., 1952
Scott D.W., 2,2,3,3-Tetramethylbutane: heat capacity, heats of transition, fusion and sublimation, vapor pressure, entropy and thermodynamic functions, J. Am. Chem. Soc., 1952, 74, 883-887. [all data]

Scott D.W., 1974
Scott D.W., Chemical Thermodynamic Properties of Hydrocarbons and Related Substances. Properties of the Alkane Hydrocarbons, C1 through C10 in the Ideal Gas State from 0 to 1500 K. U.S. Bureau of Mines, Bulletin 666, 1974. [all data]

Scott D.W., 1974, 2
Scott D.W., Correlation of the chemical thermodynamic properties of alkane hydrocarbons, J. Chem. Phys., 1974, 60, 3144-3165. [all data]


Notes

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