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p-Cymene

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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
Deltafliquid-78.0 ± 1.1kJ/molCcbGood, 1973ALS
Deltafliquid-78.4 ± 2.1kJ/molCcbProsen, Johnson, et al., 1946ALS
Quantity Value Units Method Reference Comment
Deltacliquid-5857.9 ± 1.0kJ/molCcbGood, 1973Corresponding «DELTA»fliquid = -78.03 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-5857.6 ± 2.2kJ/molCcbProsen, Johnson, et al., 1946Corresponding «DELTA»fliquid = -78.28 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid306.7J/mol*KN/AHuffman, Parks, et al., 1931Extrapolation below 90 K, 80.00 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
242.3298.Kurbatov, 1947T = 10 to 166°C, mean Cp, four temperatures.; DH
236.4297.1Huffman, Parks, et al., 1931T = 92 to 297 K. Value is unsmoothed experimental datum.; DH

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

p-Cymene = Benzene, 1-methyl-3-(1-methylethyl)-

By formula: C10H14 = C10H14

Quantity Value Units Method Reference Comment
Deltar0.0 ± 0.63kJ/molEqkTsvetkov, Rozhnov, et al., 1985liquid phase

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Good, 1973
Good, W.D., The enthalpies of combustion and formation of n-butylbenzene, the diethylbenzenes, the methyl-n-propylbenzenes, and the methyl-iso-propylbenzenes, J. Chem. Thermodyn., 1973, 5, 707-714. [all data]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes, J. Res. NBS, 1946, 36, 455-461. [all data]

Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]

Kurbatov, 1947
Kurbatov, V.Ya., Specific heat of liquids. I. Specific heat of benzenoid hydrocarbons, Zhur. Obshch. Khim., 1947, 17, 1999-2003. [all data]

Tsvetkov, Rozhnov, et al., 1985
Tsvetkov, V.F.; Rozhnov, A.M.; Nesterova, T.N., Study of the equilibrium of isomerization and transalkylation of isopropyltoluenes, Neftekhimiya, 1985, 53-57. [all data]


Notes

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