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Benzene, 1,2,3,4-tetrafluoro-

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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
Tboil368.2KN/AAldrich Chemical Company Inc., 1990BS
Tboil368.KN/APCR Inc., 1990BS
Tboil366.7KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Ttriple231.25KN/AAndon and Martin, 1973Crystal phase 2 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple233.26KN/AAndon and Martin, 1973Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc550.83KN/AAmbrose, Broderick, et al., 1974Uncertainty assigned by TRC = 0.2 K; TRC
Tc550.83KN/AHales and Townsend, 1974Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Pc37.91barN/AAmbrose, Broderick, et al., 1974Uncertainty assigned by TRC = 0.04 bar; TRC
Quantity Value Units Method Reference Comment
rhoc3.196mol/lN/AHales and Townsend, 1974Uncertainty assigned by TRC = 0.0031 mol/l; Liquid density determined by magnetically balanced float up to 490 K, see J.L.Hales, 1970. Critical D by equation due to Riedel.; TRC
Quantity Value Units Method Reference Comment
Deltavap37.5kJ/molN/ABoublik, Fried, et al., 1984Based on data from 300. - 390. K. See also Basarová and Svoboda, 1991.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
36.8315.AStephenson and Malanowski, 1987Based on data from 300. - 392. K. See also Ambrose, Ellender, et al., 1975 and Boublik, Fried, et al., 1984.; AC
37.0294.MMStephenson and Malanowski, 1987Based on data from 279. - 323. K. See also Findlay, 1969.; 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
279.20 - 323.024.317351394.889-44.425Findlay, 1969Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
10.93233.3Andon and Martin, 1973AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
4.900221.crystaline, IIcrystaline, IAndon and Martin, 1973, 2DH
6.180231.25crystaline, IIliquidAndon and Martin, 1973, 2DH
10.930233.26crystaline, IliquidAndon and Martin, 1973, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
22.2221.crystaline, IIcrystaline, IAndon and Martin, 1973, 2DH
26.7231.25crystaline, IIliquidAndon and Martin, 1973, 2DH
46.9233.26crystaline, IliquidAndon and Martin, 1973, 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

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.

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

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]

Andon and Martin, 1973
Andon, R.J.L.; Martin, J.F., Thermodynamic properties of fluorine compounds. Part 11.---Low-temperature heat capacities of the three tetrafluorobenzenes, J. Chem. Soc., Faraday Trans. 1, 1973, 69, 0, 761, https://doi.org/10.1039/f19736900761 . [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]

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]

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]

Ambrose, Ellender, et al., 1975
Ambrose, D.; Ellender, J.H.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of fluorine compounds. Part 15.---Vapour pressures of the three tetrafluorobenzenes and 1,3,5-trichloro-2,4,6-trifluorobenzene, J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 35, https://doi.org/10.1039/f19757100035 . [all data]

Findlay, 1969
Findlay, T.J.V., Vapor pressures of fluorobenzenes from 5 to 50.deg.C, J. Chem. Eng. Data, 1969, 14, 2, 229-231, https://doi.org/10.1021/je60041a012 . [all data]

Andon and Martin, 1973, 2
Andon, R.J.L.; Martin, J.F., Thermodynamic properties of fluorine compounds. Part 11. Low-temperature heat capacities of the three tetrafluorobenzenes, J. Chem. Soc. Faraday Trans., 1973, I 69, 761-770. [all data]


Notes

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