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Phenol, 3,5-dimethyl-

Data at NIST subscription sites:

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil494. ± 2.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus337. ± 3.KAVGN/AAverage of 17 values; Individual data points
Quantity Value Units Method Reference Comment
Tc715.55KN/AAmbrose, 1963Uncertainty assigned by TRC = 0.8 K; TRC
Tc766.15KN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Pc55.0000atmN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 3.0000 atm; TRC
Quantity Value Units Method Reference Comment
Deltavap19.60kcal/molN/AMajer and Svoboda, 1985 
Deltavap10.85kcal/molCGlaser and Ruland, 1957ALS
Quantity Value Units Method Reference Comment
Deltasub19.80 ± 0.07kcal/molVAndon, Biddiscombe, et al., 1960ALS
Deltasub19.8kcal/molN/AAndon, Biddiscombe, et al., 1960DRB

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
13.2442.A,GS,EBStephenson and Malanowski, 1987Based on data from 427. - 497. K. See also Andon, Biddiscombe, et al., 1960, 2.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
427.87 - 496.474.25231641.603-108.79Andon, Biddiscombe, et al., 1960Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
19.8 ± 0.07282. - 323.GSAndon, Biddiscombe, et al., 1960, 2See also Lenchitz and Velicky, 1970 and Stephenson and Malanowski, 1987.; AC
15.1 ± 0.2299.VWolf and Weghofer, 1938ALS

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
4.3014336.8Poeti, Fanelli, et al., 1982DH
4.1640336.59Mastrangelo, 1957DH
4.30336.8Acree, 1991AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
12.76336.8Poeti, 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:


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.

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

Glaser and Ruland, 1957
Glaser, F.; Ruland, H., Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen, Chem. Ing. Techn., 1957, 29, 772. [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]

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]

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]

Lenchitz and Velicky, 1970
Lenchitz, Charles; Velicky, Rodolf W., Vapor pressure and heat of sublimation of three nitrotoluenes, J. Chem. Eng. Data, 1970, 15, 3, 401-403, https://doi.org/10.1021/je60046a022 . [all data]

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

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

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