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Cyclopentane, 1,3-dimethyl-, cis-

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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.

Quantity Value Units Method Reference Comment
Tboil364.0 ± 0.6KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus139. ± 3.KAVGN/AAverage of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple139.48KN/AGross, Oliver, et al., 1953Uncertainty assigned by TRC = 0.07 K; mis-identified as trans-1,3-dimethylcyclopentane in orginal paper; TRC
Quantity Value Units Method Reference Comment
Tc551.9KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap34.3kJ/molN/AMajer and Svoboda, 1985 
Deltavap34.3kJ/molN/AReid, 1972AC
Deltavap34.2kJ/molVScott, Berg, et al., 1960ALS
Deltavap34.6kJ/molN/AJohnson, Prosen, et al., 1949DRB

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
30.4363.9N/AMajer and Svoboda, 1985 
34.2310.AStephenson and Malanowski, 1987Based on data from 295. - 366. K.; AC
32.83 ± 0.004322.62VMcCullough, Pennington, et al., 1959ALS
32.8 ± 0.1323.CMcCullough, Pennington, et al., 1959AC
31.7 ± 0.1342.CMcCullough, Pennington, et al., 1959AC
30.4 ± 0.1364.CMcCullough, Pennington, et al., 1959AC
34.0314.N/AForziati, Norris, et al., 1949Based on data from 299. - 366. K.; AC

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
323. - 364.49.540.2812551.9Majer and Svoboda, 1985 

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
299.13 - 365.783.967671242.676-51.222Forziati, Norris, et al., 1949, 2Coefficents calculated by NIST from author's data.

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.

Gross, Oliver, et al., 1953
Gross, M.E.; Oliver, G.D.; Huffman, H.M., Low temperature thermal data for some C7H14 alkylcyclopentanes, J. Am. Chem. Soc., 1953, 75, 2801. [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]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Scott, Berg, et al., 1960
Scott, D.W.; Berg, W.T.; McCullough, J.P., Chemical thermodynamic properties of methylcyclopentane and 1-cis-3-dimethylcyclopentane, J. Phys. Chem., 1960, 64, 906. [all data]

Johnson, Prosen, et al., 1949
Johnson, W.H.; Prosen, E.J.; Rossini, F.D., Heats of combustion and isomerization of the six C7H14 alkylcyclopentanes, J. Res. NBS, 1949, 42, 251-255. [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]

McCullough, Pennington, et al., 1959
McCullough, J.P.; Pennington, R.E.; Smith, J.C.; Hossenlopp, I.A.; Waddington, G., Thermodynamics of cyclopentane, methylcyclopentane and 1,cis-3-dimethylcyclopentane: Verification of the concept of pseudorotation, J. Am. Chem. Soc., 1959, 81, 5880-5883. [all data]

Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D., Vapor pressures and boiling points of sixty API-NBS hydrocarbons, J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050 . [all data]

Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D., Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons, J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050 . [all data]


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