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Benzene, pentafluoro(trifluoromethyl)-

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil376. - 378.KN/APCR Inc., 1990BS
Tboil377.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Ttriple207.62KN/APaukov, 1975Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple207.69KN/AAndon and Martin, 1974Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc534.4KN/ASkripov and Muratov, 1977TRC
Tc534.47KN/AAmbrose, Broderick, et al., 1974Uncertainty assigned by TRC = 0.2 K; TRC
Tc534.47KN/AHales and Townsend, 1974Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Pc26.80barN/ASkripov and Muratov, 1977Vis, pc by extrapolation of VP; TRC
Pc27.05barN/AAmbrose, Broderick, et al., 1974Uncertainty assigned by TRC = 0.04 bar; TRC
Quantity Value Units Method Reference Comment
rhoc2.338mol/lN/AHales and Townsend, 1974Uncertainty assigned by TRC = 0.0023 mol/l; Liquid density determined by magnetically balanced float up to 490 K, see J.L.Hales, 1970-128. Critical D by equation due to Riedel.; TRC
Quantity Value Units Method Reference Comment
Deltavap40.5 ± 0.2kJ/molN/ADias, Gonçalves, et al., 2005Based on data from 288. - 334. K.; AC
Deltavap40.4kJ/molN/ABoublik, Fried, et al., 1984Based on data from 290. - 400. K. See also Basarová and Svoboda, 1991.; AC
Deltavap41.6 ± 0.2kJ/molVKrech, Price, et al., 1973ALS
Deltavap41.6 ± 0.2kJ/molN/AKrech, Price, et al., 1973Based on data from 285. - 334. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
40.0306.N/ADykyj, Svoboda, et al., 1999Based on data from 291. - 378. K.; AC
40.9300.AStephenson and Malanowski, 1987Based on data from 285. - 376. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
11.581207.62Paukov, 1975DH
11.490207.69Andon and Martin, 1974, 2DH
11.49207.Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
55.32207.69Andon and Martin, 1974, 2DH

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.

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Paukov, 1975
Paukov, I.E., Thermodynamic properties of octafluorotoluene in the temperature range 13 to 300 K, Zhur. Fiz. Khim., 1975, 49, 265. [all data]

Andon and Martin, 1974
Andon, R.J.L.; Martin, J.F., Thermodynamic Properties of Fluorine Compounds Part 14. Low-temperature heat capacity and entropy of octafluorotoluene, J. Chem. Soc., Faraday Trans. 1, 1974, 70, 605. [all data]

Skripov and Muratov, 1977
Skripov, V.P.; Muratov, G.N., The surface tensions of liquids and their interpretation by the method of thermodynamic similarity., Russ. J. Phys. Chem. (Engl. Transl.), 1977, 51, 806-8. [all data]

Ambrose, Broderick, et al., 1974
Ambrose, D.; Broderick, B.E.; Townsend, R., The Critical Temperatures and Pressures of Thirty Organic Compounds, J. Appl. Chem. Biotechnol., 1974, 24, 359. [all data]

Hales and Townsend, 1974
Hales, J.L.; Townsend, R., Liquid Densities from 293 to 490 K of Eight Fluorinated Aromatic Comp., J. Chem. Thermodyn., 1974, 6, 111-6. [all data]

Dias, Gonçalves, et al., 2005
Dias, Ana M.A.; Gonçalves, Carla M.B.; Caço, Ana I.; Santos, Luís M.N.B.F.; Piñeiro, Manuel M.; Vega, Lourdes F.; Coutinho, João A.P.; Marrucho, Isabel M., Densities and Vapor Pressures of Highly Fluorinated Compounds, J. Chem. Eng. Data, 2005, 50, 4, 1328-1333, https://doi.org/10.1021/je050056e . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Basarová and Svoboda, 1991
Basarová, Pavlína; Svoboda, Václav, Calculation of heats of vaporization of halogenated hydrocarbons from saturated vapour pressure data, Fluid Phase Equilibria, 1991, 68, 13-34, https://doi.org/10.1016/0378-3812(91)85008-I . [all data]

Krech, Price, et al., 1973
Krech, M.J.; Price, S.J.W.; Yared, W.F., Determination of the heat of formation of octafluorotoluene and calculation of D[C6F5-F] - D[C6F5-CF3], Can. J. Chem., 1973, 51, 3662-3664. [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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 and Martin, 1974, 2
Andon, R.J.L.; Martin, J.F., Thermodynamic properties of fluorine compounds. Part 14. Low-temperature heat capacity and entropy of octafluorotoluene, J. Chem. Soc. Faraday Trans., 1974, I 70, 605-608. [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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