Benzene, 1,2,4,5-tetrafluoro-
- Formula: C6H2F4
- Molecular weight: 150.0737
- IUPAC Standard InChIKey: SDXUIOOHCIQXRP-UHFFFAOYSA-N
- CAS Registry Number: 327-54-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 1,2,4,5-Tetrafluorobenzene; 2,3,5,6-Tetrafluorobenzene
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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 |
---|---|---|---|---|---|
Tboil | 363. | K | N/A | PCR Inc., 1990 | BS |
Tboil | 362.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 277.03 | K | N/A | Andon and Martin, 1973 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 543.35 | K | N/A | Ambrose, Broderick, et al., 1974 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 37.51 | atm | N/A | Ambrose, Broderick, et al., 1974 | Uncertainty assigned by TRC = 0.06 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 8.89 | kcal/mol | N/A | Boublik, Fried, et al., 1984 | Based on data from 290. to 390. K. See also Basarová and Svoboda, 1991.; AC |
ΔvapH° | 8.870 | kcal/mol | V | Findlay, 1969 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.91 | 405. | A | Stephenson and Malanowski, 1987 | Based on data from 390. to 488. K.; AC |
7.79 | 503. | A | Stephenson and Malanowski, 1987 | Based on data from 488. to 543. K.; AC |
8.80 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. to 390. K. See also Ambrose, Ellender, et al., 1975 and Boublik, Fried, et al., 1984.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.5970 | 277.03 | Andon and Martin, 1973, 2 | DH |
3.597 | 277. | Andon and Martin, 1973 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.99 | 277.03 | Andon and Martin, 1973, 2 | DH |
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.
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]
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]
Findlay, 1969
Findlay, T.J.V.,
Vapor pressures of fluorobenzenes from 5° to 50°C,
J. Chem. Eng. Data, 1969, 14, 229. [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]
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
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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