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Pyridine, 2,4,6-trimethyl-

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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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil444. ± 3.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus228.15KN/AAssal, 1966Uncertainty assigned by TRC = 1. K; TRC
Tfus228.95KN/AMastrangelo, 1957Uncertainty assigned by TRC = 0.05 K; TRC
Tfus228.69KN/ABrown, Johnson, et al., 1954Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Deltavap12.0 ± 0.69kcal/molCGCLipkind and Chickos, 2009Based on data from 342. - 373. K.; AC
Deltavap12.0kcal/molCGCChickos, Hosseini, et al., 1995Based on data from 323. - 373. K.; AC
Deltavap12.0 ± 0.05kcal/molN/AMajer, Svoboda, et al., 1985AC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
11.1363.N/ASakoguchi, Ueoka, et al., 1995Based on data from 303. - 424. K.; AC
12.2313.EBLencka, 1990Based on data from 298. - 444. K.; AC
11.5328.CMajer, Svoboda, et al., 1985AC
11.3343.CMajer, Svoboda, et al., 1985AC
10.9368.CMajer, Svoboda, et al., 1985AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
2.279228.96Mastrangelo, 1957, 2DH
2.28229.Domalski and Hearing, 1996AC

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.

Assal, 1966
Assal, F.A., Vapour-liquid equilibria in phenol-pyridine base systems, Bull. Acad. Pol. Sci., Ser. Sci. Chim., 1966, 14, 603. [all data]

Mastrangelo, 1957
Mastrangelo, S.V.R., Adiabatic calorimeter for determination of cryoscopic data., Anal. Chem., 1957, 29, 841. [all data]

Brown, Johnson, et al., 1954
Brown, H.C.; Johnson, S.; Podall, H., Purification and Physical Properties of 2,6-Lutidine and 2,4,6-Collidine, J. Am. Chem. Soc., 1954, 76, 5556. [all data]

Lipkind and Chickos, 2009
Lipkind, Dmitri; Chickos, James S., An examination of the vaporization enthalpies and vapor pressures of pyrazine, pyrimidine, pyridazine, and 1,3,5-triazine, Struct Chem, 2009, 20, 1, 49-58, https://doi.org/10.1007/s11224-008-9389-5 . [all data]

Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G., Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times, Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3 . [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]

Sakoguchi, Ueoka, et al., 1995
Sakoguchi, Akihiro; Ueoka, Ryuichi; Kato, Yasuo; Arai, Yasuhiko, Vapor Pressures of Alkylpyridines and Alkylpyrazines., KAGAKU KOGAKU RONBUNSHU, 1995, 21, 1, 219-223, https://doi.org/10.1252/kakoronbunshu.21.219 . [all data]

Lencka, 1990
Lencka, Malgorzata, Measurements of the vapour pressures of pyridine, 2-methylpyridine, 2,4-dimethylpyridine, 2,6-dimethylpyridine, and 2,4,6-trimethylpyridine from 0.1 kPa to atmospheric pressure using a modified Swietoslawski ebulliometer, The Journal of Chemical Thermodynamics, 1990, 22, 5, 473-480, https://doi.org/10.1016/0021-9614(90)90139-H . [all data]

Mastrangelo, 1957, 2
Mastrangelo, S.V.R., Adiabatic calorimeter for determination of cryoscopic data, Anal. Chem., 1957, 29(5), 841-845. [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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