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1,4-Cyclohexanedione

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Quantity Value Units Method Reference Comment
Tfus350.KN/AAlvik, Borgen, et al., 1972Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Tfus351.15KN/AHartley and Dobbie, 1898Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Ttriple351.6KN/ADe Wit, De Kruif, et al., 1983Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Deltasub75.0 ± 1.0kJ/molVPilcher, Parchment, et al., 1993ALS
Deltasub75.0 ± 1.0kJ/molCPilcher, Parchment, et al., 1993AC
Deltasub84.2kJ/molN/ADe Wit, Van Miltenburg, et al., 1983AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
75.000298.15N/APilcher, Parchment, et al., 1993DH
84.4289.TE,MEDe Wit, Van Miltenburg, et al., 1983AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
11.26351.5De Wit, De Kruif, et al., 1983, 2AC
10.04348.2Alvik, Borgen, et al., 1972, 2AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
19.09322.2Alvik, Borgen, et al., 1972CAL
2.83339.2
28.84348.2

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
319.89crystaline, IIIcrystaline, IIDeWit, DeKruif, et al., 1983DH
336.73crystaline, IIcrystaline, IDeWit, DeKruif, et al., 1983DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
11.325351.6crystaline, IliquidDeWit, DeKruif, et al., 1983DH

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:


References

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.

Alvik, Borgen, et al., 1972
Alvik, T.; Borgen, G.; Dale, J., Conformational Studies of Normal, Medium, and Large Ring Diametric Cycloalkanediones and Their Ethylene Ketal Derivatives., Acta Chem. Scand., 1972, 26, 1805, https://doi.org/10.3891/acta.chem.scand.26-1805 . [all data]

Hartley and Dobbie, 1898
Hartley, W.N.; Dobbie, J.J., The ultraviolet absorption spectra of some closed chain carbon compounds, J. Chem. Soc., 1898, 73, 598. [all data]

De Wit, De Kruif, et al., 1983
De Wit, H.G.M.; De Kruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulfur II. Molar heat capacities of eight compounds by adiabatic calorimetry, J. Chem. Thermodyn., 1983, 15, 9, 891, https://doi.org/10.1016/0021-9614(83)90095-2 . [all data]

Pilcher, Parchment, et al., 1993
Pilcher, G.; Parchment, O.G.; Hillier, I.H.; Heatley, F.; Fletcher, D.; Ribeiro da Silva, M.A.V.; Ferrao, M.L.C.C.H.; Monte, J.S.; Jiye, F., Thermochemical and theoretical studies on cyclohexanediones, J. Phys. Chem., 1993, 97, 243-247. [all data]

De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation, The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4 . [all data]

De Wit, De Kruif, et al., 1983, 2
De Wit, H.G.M.; De Kruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulfur II. Molar heat capacities of eight compounds by adiabatic calorimetry, The Journal of Chemical Thermodynamics, 1983, 15, 9, 891-902, https://doi.org/10.1016/0021-9614(83)90095-2 . [all data]

Alvik, Borgen, et al., 1972, 2
Alvik, Thor; Borgen, Gerd; Dale, Johannes; Øye, H.A.; Svensson, Sigfrid, Conformational Studies of Normal, Medium, and Large Ring Diametric Cycloalkanediones and Their Ethylene Ketal Derivatives., Acta Chem. Scand., 1972, 26, 1805-1816, https://doi.org/10.3891/acta.chem.scand.26-1805 . [all data]

DeWit, DeKruif, et al., 1983
DeWit, H.G.M.; DeKruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing organic crystals containing nitrogen, oxygen, and sulfur. II. Molar heat capacities of eight compounds by adiabatic calorimetry, J. Chem. Thermodynam., 1983, 15, 891-902. [all data]


Notes

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