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Cyclopentane, butyl-

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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, Kenneth Kroenlein director
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil429.9 ± 0.4KAVGN/AAverage of 10 out of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus165. ± 3.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple165.18KN/AMesserly, Todd, et al., 1965Uncertainty assigned by TRC = 0.01 K; TRC
Ttriple165.19KN/AAnonymous, 1959Uncertainty assigned by TRC = 0.6 K; TRC
Quantity Value Units Method Reference Comment
Tc631.KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap45.91kJ/molN/AMajer and Svoboda, 1985 
Deltavap46.0kJ/molN/AProsen, Johnson, et al., 1946DRB

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
36.16429.8N/AMajer and Svoboda, 1985 
39.4422.AStephenson and Malanowski, 1987Based on data from 413. - 432. K.; AC
43.8 ± 0.1328.CSvoboda, Charvátová, et al., 1981AC
42.7 ± 0.1343.CSvoboda, Charvátová, et al., 1981AC
41.6 ± 0.1358.CSvoboda, Charvátová, et al., 1981AC
40.9 ± 0.1368.CSvoboda, Charvátová, et al., 1981AC

Enthalpy of vaporization

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

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Temperature (K) A (kJ/mol) beta Tc (K) Reference Comment
328. - 368.66.610.335631.Majer and Svoboda, 1985 

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
11.314165.18Messerly, Todd, et al., 1965, 2DH
11.31165.2Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
68.49165.18Messerly, Todd, et al., 1965, 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

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.

Messerly, Todd, et al., 1965
Messerly, J.F.; Todd, S.S.; Finke, H.L., Low-Temperature Thermodynamic Properties of n-Propyl, n-Butyl and n-Decyl-Substituted Cyclopentanes, J. Phys. Chem., 1965, 69, 353-9. [all data]

Anonymous, 1959
Anonymous, X., Unpublished, 1959, Bartlesville, OK 1959. [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]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH2 group for several homologous series of hydrocarbons, J. Res. NBS, 1946, 37, 51-56. [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]

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]

Messerly, Todd, et al., 1965, 2
Messerly, J.F.; Todd, S.S.; Finke, H.L., Low-temperature thermodynamic properties of n-propyl-, n-butyl-, and n-decyl-substituted cyclopentanes, J. Phys. Chem., 1965, 69, 353-359. [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]


Notes

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