Methane, dibromodifluoro-
- Formula: CBr2F2
- Molecular weight: 209.816
- IUPAC Standard InChIKey: AZSZCFSOHXEJQE-UHFFFAOYSA-N
- CAS Registry Number: 75-61-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Dibromodifluoromethane; Difluorodibromomethane; Freon 12-B2; Halon 1202; CF2Br2; UN 1941
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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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 297.6 | K | N/A | PCR Inc., 1990 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 131.61 | K | N/A | McDonald, Shrader, et al., 1959 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.05 K; TRC |
Tfus | 126.69 | K | N/A | McDonald, Shrader, et al., 1959 | Metastable crystal phase; Uncertainty assigned by TRC = 0.05 K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
26.1 | 282. | A | Stephenson and Malanowski, 1987 | Based on data from 247. to 297. K. See also McDonald, Shrader, et al., 1959, 2 and Kudchadker, Kudchadker, et al., 1979.; AC |
18.6 | 203. | N/A | Banks, Emel«65533»us, et al., 1948 | Based on data from 156. to 218. K.; 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 |
---|---|---|---|---|
184.46 to 295.94 | 4.28461 | 1185.48 | -18.886 | McDonald, Shrader, et al., 1959, 2 |
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]
McDonald, Shrader, et al., 1959
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of 30 Organics,
J. Chem. Eng. Data, 1959, 4, 311. [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]
McDonald, Shrader, et al., 1959, 2
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of Thirty Pure Organic Compounds.,
J. Chem. Eng. Data, 1959, 4, 4, 311-313, https://doi.org/10.1021/je60004a009
. [all data]
Kudchadker, Kudchadker, et al., 1979
Kudchadker, A.P.; Kudchadker, S.A.; Shukla, R.P.; Patnaik, P.R.,
Vapor pressures and boiling points of selected halomethanes,
J. Phys. Chem. Ref. Data, 1979, 8, 2, 499, https://doi.org/10.1063/1.555600
. [all data]
Banks, Emel«65533»us, et al., 1948
Banks, A.A.; Emel«65533»us, H.J.; Haszeldine, R.N.; Kerrigan, V.,
443. The reaction of bromine trifluoride and iodine pentafluoride with carbon tetrachloride, tetrabromide, and tetraiodide and with tetraiodoethylene,
J. Chem. Soc., 1948, 2188, https://doi.org/10.1039/jr9480002188
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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