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Cyclohexane, ethyl-

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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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil405. ± 2.KAVGN/AAverage of 37 out of 39 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus161. ± 3.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple161.84KN/AHuffman, Todd, et al., 1949Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple161.4KN/AParks, Moore, et al., 1949Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Tc609.KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap9.6 ± 0.2kcal/molAVGN/AAverage of 9 values; Individual data points

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
8.136405.N/AMajer and Svoboda, 1985 
9.23338.A,MMStephenson and Malanowski, 1987Based on data from 323. - 407. K. See also Willingham, Taylor, et al., 1945.; AC
9.51 ± 0.02313.CSvoboda, Charvátová, et al., 1981AC
9.30 ± 0.02328.CSvoboda, Charvátová, et al., 1981AC
9.06 ± 0.02343.CSvoboda, Charvátová, et al., 1981AC
8.84 ± 0.02358.CSvoboda, Charvátová, et al., 1981AC
8.68 ± 0.02368.CSvoboda, Charvátová, et al., 1981AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kcal/mol) beta Tc (K) Reference Comment
298. - 368.13.640.294609.Majer and Svoboda, 1985 

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
1.9917161.84Huffman, Todd, et al., 1949, 2DH
2.0161.5Mandanici, Cutroni, et al., 2006AC
1.99161.4Domalski and Hearing, 1996AC
1.978161.4Parks, Moore, et al., 1949, 2DH

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
12.31161.84Huffman, Todd, et al., 1949, 2DH
12.3161.4Parks, Moore, et al., 1949, 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:


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.

Huffman, Todd, et al., 1949
Huffman, H.M.; Todd, S.S.; Oliver, G.D., Low Temperature Thermal Data on Eight C8H16 Alkylcyclohexanes, J. Am. Chem. Soc., 1949, 71, 584. [all data]

Parks, Moore, et al., 1949
Parks, G.S.; Moore, G.E.; Renquist, M.L.; Naylor, B.F.; McClaine, L.A.; Fujii, P.S.; Hatton, J.A., Thermal Data on Organic Compounds. XXV. Some Heat Capacity, Entropy and Free Energy Data for Nine Hydrocarbons of High Molecular Weight, J. Am. Chem. Soc., 1949, 71, 10, 3386, https://doi.org/10.1021/ja01178a034 . [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]

Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons, J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009 . [all data]

Svoboda, Charvátová, et al., 1981
Svoboda, Václav; Charvátová, Vladimíra; Majer, Vladimír; Pick, Jirí, Determination of heats of vaporization and some other thermodynamic quantities for four alkylcycloparaffins, Collect. Czech. Chem. Commun., 1981, 46, 12, 2983-2988, https://doi.org/10.1135/cccc19812983 . [all data]

Huffman, Todd, et al., 1949, 2
Huffman, H.M.; Todd, S.S.; Oliver, G.D., Low temperature thermal data on eight C8H16 alkylcyclohexanes, J. Am. Chem. Soc., 1949, 71, 584-592. [all data]

Mandanici, Cutroni, et al., 2006
Mandanici, Andrea; Cutroni, Maria; Triolo, Alessandro; Rodriguez-Mora, Virginia; Ramos, Miguel A., Thermodynamic study of alkyl-cyclohexanes in liquid, glassy, and crystalline states, J. Chem. Phys., 2006, 125, 5, 054514, https://doi.org/10.1063/1.2238863 . [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]

Parks, Moore, et al., 1949, 2
Parks, G.S.; Moore, G.E.; Renquist, M.L.; Naylor, B.F.; McClaine, L.A.; Fujii, P.S.; Hatton, J.A., Thermal data on organic compounds. XXV. Some heat capacity, entropy and free energy data for nine hydrocarbons of high molecular weight, J. Am. Chem. Soc., 1949, 71, 3386-3389. [all data]


Notes

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