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Cycloheptane

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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:
BS - Robert L. Brown and Stephen E. Stein
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
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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil392.0 ± 0.9KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus264. ± 3.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple265.KN/AFinke, Scott, et al., 1956Crystal phase 1 phase; Uncertainty assigned by TRC = 0.07 K; TRC
Ttriple265.12KN/AFinke, Scott, et al., 1956Crystal phase 1 phase; Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple265.1KN/AKaarsemaker, 1951Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Tc604.2 ± 0.5KN/ADaubert, 1996 
Tc604.2KN/AHicks and Young, 1971Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Pc37.7 ± 0.4atmN/ADaubert, 1996 
Pc37.63atmN/AYoung, 1972Uncertainty assigned by TRC = 0.49 atm; TRC
Pc37.76atmN/AHicks and Young, 1971Uncertainty assigned by TRC = 0.4000 atm; TRC
Quantity Value Units Method Reference Comment
Vc0.353l/molN/ADaubert, 1996 
Vc0.354l/molN/AYoung, 1972Uncertainty assigned by TRC = 0.007 l/mol; TRC
Quantity Value Units Method Reference Comment
rhoc2.83 ± 0.04mol/lN/ADaubert, 1996 
Quantity Value Units Method Reference Comment
Deltavap9.20kcal/molN/AAnand, Grolier, et al., 1975Based on data from 283. - 323. K.; AC
Deltavap9.21 ± 0.50kcal/molVFinke, Scott, et al., 1956, 2ALS
Deltavap9.20 ± 0.05kcal/molN/AFinke, Scott, et al., 1956, 3AC
Deltavap9.42kcal/molVKaarsemaker and Coops, 1952ALS
Deltavap8.9kcal/molESpitzer and Huffman, 1947ALS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
9.23297.AStephenson and Malanowski, 1987Based on data from 282. - 333. K.; AC
7.58491.AStephenson and Malanowski, 1987Based on data from 476. - 604. K.; AC
8.70348.A,EBStephenson and Malanowski, 1987Based on data from 333. - 398. K. See also Meyer and Hotz, 1976.; AC
8.63356.A,EBStephenson and Malanowski, 1987Based on data from 341. - 433. K. See also Finke, Scott, et al., 1956, 3.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
341.3 - 432.173.97141330.402-56.946Finke, Scott, et al., 1956, 3Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Reference Comment
12.8134.Bondi, 1963AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
0.449265.1Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
8.829134.8Domalski and Hearing, 1996CAL
0.349198.2
0.504212.4
1.7265.1

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
135.7crystaline, IVcrystaline, IIIHaines and Gilson, 1990DH
206.3crystaline, IIIcrystaline, IHaines and Gilson, 1990Overlap of the III to II and the II to I transitions.; DH

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.1870134.8crystaline, IVcrystaline, IIIFinke, Scott, et al., 1956, 3DH
0.06919198.2crystaline, IIIcrystaline, IIFinke, Scott, et al., 1956, 3DH
0.1075212.4crystaline, IIcrystaline, IFinke, Scott, et al., 1956, 3DH
0.44981265.12crystaline, IliquidFinke, Scott, et al., 1956, 3DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
8.805134.8crystaline, IVcrystaline, IIIFinke, Scott, et al., 1956, 3DH
0.349198.2crystaline, IIIcrystaline, IIFinke, Scott, et al., 1956, 3DH
0.507212.4crystaline, IIcrystaline, IFinke, Scott, et al., 1956, 3DH
1.70265.12crystaline, IliquidFinke, Scott, et al., 1956, 3DH

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.

Finke, Scott, et al., 1956
Finke, H.L.; Scott, D.W.; Gross, M.E.; Messerly, J.F.; Waddington, G., Cycloheptane, Cyclooctane and 1,3,5-Cycloheptatriene. Low Temperature Thermal Properties, Vapor Pressure and Derived Chemical Thermodynamic Prop., J. Am. Chem. Soc., 1956, 78, 5469. [all data]

Kaarsemaker, 1951
Kaarsemaker, S., , Thesis, 1951. [all data]

Daubert, 1996
Daubert, T.E., Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes, J. Chem. Eng. Data, 1996, 41, 365-372. [all data]

Hicks and Young, 1971
Hicks, C.P.; Young, C.L., Critical Temperatures of Mixtures of Quasi-spherical Molecules. Alicyclic Hydrocarbons + Benzene, + Hexafluorobenzene and + Perfluorocyclohexane, Trans. Faraday Soc., 1971, 67, 1605-11. [all data]

Young, 1972
Young, C.L., Gas-liquid critical properties of the cycloalkanes and their mixtures, Aust. J. Chem., 1972, 25, 1625-30. [all data]

Anand, Grolier, et al., 1975
Anand, Subhash C.; Grolier, Jean P.E.; Kiyohara, Osamu; Halpin, Carl J.; Benson, George C., Thermodynamic properties of some cycloalkane-cycloalkanol systems at 298. 15K. III, J. Chem. Eng. Data, 1975, 20, 2, 184-189, https://doi.org/10.1021/je60065a020 . [all data]

Finke, Scott, et al., 1956, 2
Finke, H.L.; Scott, D.W.; Gross, M.E.; Messerly, J.F.; Waddington, G., Cycloheptane, cyclooctane and 1,3,5-cycloheptatriene. Low temperature thermal properties, vapor pressure and derived chemical thermodynamic properties, J. Am. Chem. Soc., 1956, 78, 5469-54. [all data]

Finke, Scott, et al., 1956, 3
Finke, H.L.; Scott, D.W.; Gross, M.E.; Messerly, J.F.; Waddington, G., Cycloheptane, cyclooctane and 1,3,5-cycloheptatriene. Low temperature thermal properties, vapor pressure and derived chemical thermodynamic properties, J. Am. Chem. Soc., 1956, 78, 5469-5476. [all data]

Kaarsemaker and Coops, 1952
Kaarsemaker, S.; Coops, J., Thermal quantities of some cycloparaffins. Part III. Results of measurements, Rec. Trav. Chim. Pays/Bas, 1952, 71, 261. [all data]

Spitzer and Huffman, 1947
Spitzer, R.; Huffman, H.M., The heats of combustion of cyclopentane, cyclohexane, cycloheptane and cyclooctane, J. Am. Chem. Soc., 1947, 69, 211-213. [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]

Meyer and Hotz, 1976
Meyer, Edwin F.; Hotz, Carol A., Cohesive energies in polar organic liquids. 3. Cyclic ketones, J. Chem. Eng. Data, 1976, 21, 3, 274-279, https://doi.org/10.1021/je60070a035 . [all data]

Bondi, 1963
Bondi, A., Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments., J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Haines and Gilson, 1990
Haines, J.; Gilson, D.F.R., Investigation of the phase transition behavior in solid cycloheptane, J. Phys. Chem., 1990, 94, 3156-3160. [all data]


Notes

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