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

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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 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
Deltafsolid-269.1 ± 1.2kJ/molCcbGood, 1972ALS
Deltafsolid-268.8 ± 1.9kJ/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
Deltacsolid-5451.5 ± 1.1kJ/molCcbGood, 1972Corresponding «DELTA»fsolid = -269.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-5451.9 ± 1.8kJ/molCcbProsen and Rossini, 1945Corresponding «DELTA»fsolid = -268.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
solid,1 bar273.76J/mol*KN/AScott, Douslin, et al., 1952DH
solid,1 bar256.9J/mol*KN/AParks, Huffman, et al., 1930Extrapolation below 90 K, 64.68 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
239.62301.60Scott, Douslin, et al., 1952T = 12 to 374 K. Value is unsmoothed experimental datum.; DH
232.2295.4Parks, Huffman, et al., 1930T = 89 to 295 K. Value is unsmoothed experimental datum.; DH

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, Douslin, et al., 1952
Scott, D.W.; Douslin, D.R.; Gross, M.E.; Oliver, G.D.; Huffman, H.M., 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]

Parks, Huffman, et al., 1930
Parks, G.S.; Huffman, H.M.; Thomas, S.B., Thermal data on organic compounds. VI. The heat capacities, entropies and free energies of some saturated, non-benzenoid hydrocarbons, J. Am. Chem. Soc., 1930, 52, 1032-1041. [all data]


Notes

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