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2-Pentanol, 2-methyl-

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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

Quantity Value Units Method Reference Comment
Tboil395. ± 2.KAVGN/AAverage of 19 values; Individual data points
Quantity Value Units Method Reference Comment
Tc559.5 ± 0.7KN/AGude and Teja, 1995 
Tc559.5KN/AMajer and Svoboda, 1985 
Tc559.5KN/ALawrenson and Lee, 1978Uncertainty assigned by TRC = 0.7 K; Visual, decomp.; TRC
Quantity Value Units Method Reference Comment
Deltavap54.82kJ/molN/AMajer and Svoboda, 1985 
Deltavap54.7 ± 0.2kJ/molCMajer, Svoboda, et al., 1985AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
39.59394.2N/AMajer and Svoboda, 1985 
44.2356.AStephenson and Malanowski, 1987Based on data from 341. - 396. K.; AC
48.9345.AStephenson and Malanowski, 1987Based on data from 330. - 397. K.; AC
52.8 ± 0.2313.CMajer, Svoboda, et al., 1985AC
50.7 ± 0.2328.CMajer, Svoboda, et al., 1985AC
48.5 ± 0.2343.CMajer, Svoboda, et al., 1985AC
46.1 ± 0.2358.CMajer, Svoboda, et al., 1985AC
44.4 ± 0.2368.CMajer, Svoboda, et al., 1985AC
58.3303.N/AWilhoit and Zwolinski, 1973Based on data from 288. - 396. K.; AC
49.1283.N/AStull, 1947Based on data from 268. - 394. K.; AC
51.3303.IHovorka, Lankelma, et al., 1933Based on data from 288. - 396. K.; AC

Enthalpy of vaporization

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

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Temperature (K) 298. - 368.
A (kJ/mol) 69.24
alpha -1.23
beta 1.1694
Tc (K) 559.5
ReferenceMajer 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
268.7 - 394.34.998341707.886-51.913Stull, 1947Coefficents 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:


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.

Gude and Teja, 1995
Gude, M.; Teja, A.S., Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols, J. Chem. Eng. Data, 1995, 40, 1025-1036. [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]

Lawrenson and Lee, 1978
Lawrenson, I.J.; Lee, D.A., Thermodynamic properties of organic oxygen compounds XLVIII. The critical temperature of some alkanols, J. Chem. Thermodyn., 1978, 10, 1111. [all data]

Majer, Svoboda, et al., 1985
Majer, V.; Svoboda, V.; Lencka, M., Enthalpies of vaporization and cohesive energies of dimethylpyridines and trimethylpyridines, The Journal of Chemical Thermodynamics, 1985, 17, 4, 365-370, https://doi.org/10.1016/0021-9614(85)90133-8 . [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]

Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J., Physical and thermodynamic properties of aliphatic alcohols, J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Hovorka, Lankelma, et al., 1933
Hovorka, Frank; Lankelma, H.P.; Naujoks, C.K., Thermodynamic Properties of 2-Methylpentanol-2, J. Am. Chem. Soc., 1933, 55, 12, 4820-4822, https://doi.org/10.1021/ja01339a012 . [all data]


Notes

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