Phenol, 2,6-dimethyl-

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References, Notes

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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-157.5kJ/molN/ALebedev, Vasil'ev, et al., 1996Value computed using ΔfHsolid° value of -233.1±2.9 kj/mol from Lebedev, Vasil'ev, et al., 1996 and ΔsubH° value of 75.6 kj/mol from Andon, Biddiscombe, et al., 1960.; DRB
Δfgas-174.4kJ/molN/ALindberg, Jauhiainen, et al., 1972Value computed using ΔfHsolid° value of -250.0 kj/mol from Lindberg, Jauhiainen, et al., 1972 and ΔsubH° value of 75.6 kj/mol from Andon, Biddiscombe, et al., 1960.; DRB
Δfgas-161.8 ± 0.54kJ/molCcbAndon, Biddiscombe, et al., 1960ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
43.0750.Kudchadker S.A., 1979GT
66.90100.
91.12150.
113.26200.
145.07273.15
155.97298.15
156.78300.
198.56400.
234.73500.
264.56600.
289.11700.
309.55800.
326.78900.
341.431000.
353.971100.
364.741200.
374.021300.
382.061400.
389.031500.

Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfsolid-233.1 ± 2.9kJ/molCcbLebedev, Vasil'ev, et al., 1996 
Δfsolid-250.kJ/molCcbLindberg, Jauhiainen, et al., 1972 
Δfsolid-237.4 ± 1.1kJ/molCcbAndon, Biddiscombe, et al., 1960 
Quantity Value Units Method Reference Comment
Δcsolid-4344.2 ± 2.9kJ/molCcbLebedev, Vasil'ev, et al., 1996Corresponding Δfsolid = -233.0 kJ/mol (simple calculation by NIST; no Washburn corrections)
Δcsolid-4325.4kJ/molCcbLindberg, Jauhiainen, et al., 1972Corresponding Δfsolid = -252. kJ/mol (simple calculation by NIST; no Washburn corrections)
Δcsolid-4339.9 ± 1.0kJ/molCcbAndon, Biddiscombe, et al., 1960Corresponding Δfsolid = -237.4 kJ/mol (simple calculation by NIST; no Washburn corrections)

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.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil474. ± 2.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus320. ± 3.KAVGN/AAverage of 13 out of 14 values; Individual data points
Quantity Value Units Method Reference Comment
Tc700.95KN/AAmbrose, 1963Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Δvap75.31kJ/molN/AMajer and Svoboda, 1985 
Δvap75.6kJ/molN/AMorawetz, 1971AC
Δvap75.1kJ/molN/AMorawetz, Elvebredd, et al., 1968AC
Quantity Value Units Method Reference Comment
Δsub75.6kJ/molN/AMorawetz, 1971AC
Δsub75.1kJ/molN/AMorawetz, Elvebredd, et al., 1968Author of Morawetz, Elvebredd, et al., 1968 refers to the determined value as the enthalpy of vaporization even though the compound is a solid; AC
Δsub75.6 ± 0.2kJ/molVAndon, Biddiscombe, et al., 1960ALS
Δsub75.6kJ/molN/AAndon, Biddiscombe, et al., 1960DRB
Δsub59.4 ± 0.8kJ/molVWolf and Weghofer, 1938ALS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
48.5432.A,GS,EBStephenson and Malanowski, 1987Based on data from 417. to 476. K. See also Andon, Biddiscombe, et al., 1960, 2.; 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
418.0 to 476.674.209451638.455-84.416Andon, Biddiscombe, et al., 1960Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
75.6 ± 0.17277. to 313.GSAndon, Biddiscombe, et al., 1960, 2See also Cox and Pilcher, 1970.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Method Reference Comment
18.897318.9N/APoeti, Fanelli, et al., 1982DH
18.83318.6DSCJamróz, Palczewska-Tulinska, et al., 1998AC
18.9318.9N/AAcree, 1991AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
59.26318.9Poeti, Fanelli, et al., 1982DH

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:


IR Spectrum

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Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Lebedev, Vasil'ev, et al., 1996
Lebedev, B.V.; Vasil'ev, V.G.; Bykova, T.A.; Kiparisova, E.G.; Wunderliche, B., Thermodynamics of 2,6-dimethylphenol, of the reaction of its oxidative dehydropolycondensation, and of the resultant poly(2,6-dimethyl-p-phenylene oxide)at 0-600 K, Vysokomol. Soedin., Ser. A, 1996, 38, 216-225. [all data]

Andon, Biddiscombe, et al., 1960
Andon, R.J.L.; Biddiscombe, D.P.; Cox, J.D.; Handley, R.; Harrop, D.; Herington, E.F.G.; Martin, J.F., Thermodynamic properties of organic oxygen compounds. Part I. Preparation and physical properties of pure phenol, cresols, and xylenols, J. Chem. Soc., 1960, 5246-5254. [all data]

Lindberg, Jauhiainen, et al., 1972
Lindberg, J.J.; Jauhiainen, T.P.; Savolainen, A., Oxidative coupling of 2,6-disubstituted phenols and the heat of combustion of the resulting products, Pap. Puu, 1972, 54, 91-93. [all data]

Kudchadker S.A., 1979
Kudchadker S.A., Property data available for coal chemicals, Hydrocarbon Process., 1979, 58, 169-171. [all data]

Ambrose, 1963
Ambrose, D., Critical Temperatures of Some Phenols and Other Organic Compounds, Trans. Faraday Soc., 1963, 59, 1988. [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]

Morawetz, 1971
Morawetz, E., Chem. Scr., 1971, 1, 103. [all data]

Morawetz, Elvebredd, et al., 1968
Morawetz, Ernst; Elvebredd, I.; Brunvoll, J.; Hagen, G.; Paasivirta, Jaakko, A Non-Equilibrium Low Vapor Pressure Heat of Vaporization Calorimeter. Part I. Vapor Pressure Range 200-10^-3 mm Hg., Acta Chem. Scand., 1968, 22, 1509-1531, https://doi.org/10.3891/acta.chem.scand.22-1509 . [all data]

Wolf and Weghofer, 1938
Wolf, K.L.; Weghofer, H., Uber sublimationswarmen, Z. Phys. Chem., 1938, 39, 194-208. [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]

Andon, Biddiscombe, et al., 1960, 2
Andon, R.J.L.; Biddiscombe, D.P.; Cox, J.D.; Handley, R.; Harrop, D.; Herington, E.F.G.; Martin, J.F., 1009. Thermodynamic properties of organic oxygen compounds. Part I. Preparation and physical properties of pure phenol, cresols, and xylenols, J. Chem. Soc., 1960, 5246, https://doi.org/10.1039/jr9600005246 . [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]

Poeti, Fanelli, et al., 1982
Poeti, G.; Fanelli, E.; Braghetti, M., A differential scanning calorimetric study of some phenol derivatives, J. Therm. Anal., 1982, 24(2), 273-279. [all data]

Jamróz, Palczewska-Tulinska, et al., 1998
Jamróz, Malgorzata E.; Palczewska-Tulinska, Marcela; Wyrzykowska-Stankiewicz, Danuta; Szafranski, Andrzej M.; Polaczek, Jerzy; Dobrowolski, Jan Cz.; Jamróz, Michal H.; Mazurek, Aleksander P., The urea--phenol(s) systems, Fluid Phase Equilibria, 1998, 152, 2, 307-326, https://doi.org/10.1016/S0378-3812(98)90206-0 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References