Benzene, 1,2,3,4-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
Δfliquid-90.2 ± 1.2kJ/molCcbGood, 1975ALS
Δfliquid-96.4 ± 3.0kJ/molCcbProsen, Johnson, et al., 1946ALS
Quantity Value Units Method Reference Comment
Δcliquid-5845.7 ± 1.1kJ/molCcbGood, 1975Corresponding Δfliquid = -90.21 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-5839.6 ± 3.0kJ/molCcbProsen, Johnson, et al., 1946Corresponding Δfliquid = -96.32 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-5827.5 ± 5.9kJ/molCcbBanse and Parks, 1933Reanalyzed by Cox and Pilcher, 1970, Original value = -5823.58 kJ/mol; Corresponding Δfliquid = -108.4 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid290.8J/mol*KN/AHuffman, Parks, et al., 1931Extrapolation below 90 K, 76.32 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
244.3298.Kurbatov, 1947T = 12 to 198°C, mean Cp, four temperatures.; DH
236.0291.9Huffman, Parks, et al., 1931T = 91 to 292 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, 1975
Good, W.D., The standard enthalpies of combustion and formation of n-butylbenzene, the dimethylethylbenzenes, and the tetramethylbenzenes in the condensed state, J. Chem. Thermodyn., 1975, 7, 49-59. [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]

Banse and Parks, 1933
Banse, H.; Parks, G.S., Thermal data on organic compounds. XII. The heats of combustion of nine hydrocarbons, J. Am. Chem. Soc., 1933, 55, 3223-3227. [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]

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]


Notes

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