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Hexane, 2,4-dimethyl-

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil382. ± 2.KAVGN/AAverage of 22 values; Individual data points
Quantity Value Units Method Reference Comment
Tc553.5 ± 0.5KN/ADaubert, 1996 
Tc553.45KN/AMcMicking and Kay, 1965Uncertainty assigned by TRC = 0.4 K; TRC
Tc550.0KN/AYoung and Fortey, 1879Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Pc25.6 ± 0.4barN/ADaubert, 1996 
Pc25.563barN/AMcMicking and Kay, 1965Uncertainty assigned by TRC = 0.4053 bar; TRC
Pc24.878barN/AYoung and Fortey, 1879Uncertainty assigned by TRC = 0.075 bar; from obs. vapor pressure at Tc; TRC
Quantity Value Units Method Reference Comment
Vc0.472l/molN/ADaubert, 1996 
Quantity Value Units Method Reference Comment
rhoc2.12 ± 0.04mol/lN/ADaubert, 1996 
rhoc2.12mol/lN/AMcMicking and Kay, 1965Uncertainty assigned by TRC = 0.04 mol/l; ~; TRC
Quantity Value Units Method Reference Comment
Deltavap37.83kJ/molN/AMajer and Svoboda, 1985 
Deltavap37.8kJ/molN/AReid, 1972AC
Deltavap37.8 ± 0.1kJ/molCOsborne and Ginnings, 1947AC
Deltavap37.76kJ/molCOsborne and Ginnings, 1947, 2ALS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
32.51382.6N/AMajer and Svoboda, 1985 
36.9320.A,MMStephenson and Malanowski, 1987Based on data from 305. - 385. K. See also Willingham, Taylor, et al., 1945.; AC
41.261.N/AStull, 1947Based on data from 246. - 382. K.; AC

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
246.3 - 382.63.988541292.707-57.97Stull, 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

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.

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]

McMicking and Kay, 1965
McMicking, J.H.; Kay, W.B., Vapor Pressures and Saturated Liquid and Vapor Densities of The Isomeric Heptanes and Isomeric Octanes, Proc., Am. Pet. Inst., Sect. 3, 1965, 45, 75-90. [all data]

Young and Fortey, 1879
Young, S.; Fortey, E.C., Vapor Pressures, Specific Volumes, and Critical Constants of Diisopropyl and Diisobutyl, J. Chem. Soc., 1879, 35, 1126-44. [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]

Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031 . [all data]

Osborne and Ginnings, 1947, 2
Osborne, N.S.; Ginnings, D.C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. Res. NBS, 1947, 39, 453-477. [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]

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]


Notes

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