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Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
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
Tfus386.0KN/AAndrews, Lynn, et al., 1926Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Deltasub15.9 ± 0.38kcal/molDSCRojas-Aguilar, Flores-Lara, et al., 2004AC
Deltasub15.0kcal/molCMagnus, 1956ALS
Deltasub15.000kcal/molVCoolidge and Coolidge, 1927ALS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
11.4395.AStephenson and Malanowski, 1987Based on data from 388. - 402. K.; AC

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
16.3 ± 0.1262.ME,TEde Kruif, 1981AC
15.0269.QFCoolidge and Coolidge, 1927Based on data from 260. - 278. K.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Method Reference Comment
4.40 ± 0.02385.1DSCRojas-Aguilar, Flores-Lara, et al., 2004AC
4.39 ± 0.07385.7HFCRojas-Aguilar, Flores-Lara, et al., 2004AC
4.410388.N/AAcree, 1991AC
4.4097386.0N/AAndrews, Lynn, et al., 1926, 2DH

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
11.4386.0Andrews, Lynn, et al., 1926, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Go To: Top, Phase change data, Notes

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

Andrews, Lynn, et al., 1926
Andrews, D.H.; Lynn, G.; Johnston, J., The Heat Capacities and Heat of Crystallization of Some Isomeric Aromatic Compounds, J. Am. Chem. Soc., 1926, 48, 1274. [all data]

Rojas-Aguilar, Flores-Lara, et al., 2004
Rojas-Aguilar, Aarón; Flores-Lara, Honorio; Martinez-Herrera, Melchor; Ginez-Carbajal, Francisco, Thermochemistry of benzoquinones, The Journal of Chemical Thermodynamics, 2004, 36, 6, 453-463, https://doi.org/10.1016/j.jct.2004.03.002 . [all data]

Magnus, 1956
Magnus, A., Die resonanzenergien der parachinone Aui grund der prazisionsmessungsen ihrer verbrennungswarmen durch herrn gerhard wittwer, Z. Phys. Chem. (Neue Folge), 1956, 9, 141-161. [all data]

Coolidge and Coolidge, 1927
Coolidge, A.S.; Coolidge, M.S., The sublimation pressures of substituted quinones and hydroquinones, J. Am. Chem. Soc., 1927, 49, 100-104. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

de Kruif, 1981
de Kruif, C.G., Thermodynamic properties of 1,4-benzoquinone (BQ), 1,4-hydroquinone (HQ), 1,4-naphthoquinone (NQ), 1,4-naphthohydroquinone (NHQ), and the complexes BQ--HQ 1:1, NQ--HQ 1:1, NQ--NHQ 2:1, and NQ--NHQ 1:1, J. Chem. Phys., 1981, 74, 10, 5838, https://doi.org/10.1063/1.440898 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Andrews, Lynn, et al., 1926, 2
Andrews, D.H.; Lynn, G.; Johnston, J., The heat capacities and heat of crystallization of some isomeric aromatic compounds, J. Am. Chem. Soc., 1926, 48, 1274-1287. [all data]


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