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Pentane, 3,3-dimethyl-

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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 - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
DH - E.S. Domalski and E.D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-234.6 ± 0.92kJ/molCcbProsen and Rossini, 1945ALS
Deltafliquid-239. ± 1.kJ/molCcbDavies and Gilbert, 1941ALS
Quantity Value Units Method Reference Comment
Deltacliquid-4806.70 ± 0.79kJ/molCcbProsen and Rossini, 1945Corresponding «DELTA»fliquid = -234.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-4802. ± 1.kJ/molCcbDavies and Gilbert, 1941Corresponding «DELTA»fliquid = -239.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid305.6J/mol*KN/AFinke, Messerly, et al., 1976DH
liquid293.3J/mol*KN/AHuffman, Parks, et al., 1930Extrapolation below 90 K, 60.67 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
214.8298.15Finke, Messerly, et al., 1976T = 10 to 400 K.; DH
211.7292.9Huffman, Parks, et al., 1930T = 92 to 293 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.

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]

Davies and Gilbert, 1941
Davies, G.F.; Gilbert, E.C., Heats of combustion and formation of the nine isomeric heptanes in the liquid state, J. Am. Chem. Soc., 1941, 63, 2730-2732. [all data]

Finke, Messerly, et al., 1976
Finke, H.L.; Messerly, J.F.; Douslin, D.R., Low-temperature thermal quantities for five alkyl-substituted pentanes, J. Chem. Thermodynam., 1976, 8, 965-983. [all data]

Huffman, Parks, et al., 1930
Huffman, H.M.; Parks, G.S.; Thomas, S.B., Thermal data on organic compounds. VIII. The heat capacities, entropies and free energies of the isomeric heptanes, J. Am. Chem. Soc., 1930, 52, 3241-3251. [all data]


Notes

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