Ethane, 1,1,1,2-tetrachloro-2,2-difluoro-
- Formula: C2Cl4F2
- Molecular weight: 203.830
- IUPAC Standard InChI: InChI=1S/C2Cl4F2/c3-1(4,5)2(6,7)8
- IUPAC Standard InChIKey: SLGOCMATMKJJCE-UHFFFAOYSA-N
- CAS Registry Number: 76-11-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1,1,1,2-Tetrachloro-2,2-difluoroethane; 2,2-Difluoro-1,1,1,2-tetrachloroethane; 2,2-Difluorotetrachloroethane; 1,1-Difluorotetrachloroethane; Ethane, 2,2-difluoro-1,1,1,2-tetrachloro-; Halocarbon 112a; Refrigerant 112a; Freon BU; 1,1-Difluoro-1,2,2,2-tetrachloroethane; 1,1,1,2-Tetrachlorodifluoroethane; 1,2,2,2-Tetrachloro-1,1-difluoroethane; CFC 112a; F 112a; R 112a
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 364.6 | K | N/A | PCR Inc., 1990 | BS |
| Tboil | 364.7 | K | N/A | Weast and Grasselli, 1989 | BS |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 314.2 | K | N/A | Golovanova and Kolesov, 1984 | Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 3.990 | 314.2 | Golovanova and Kolesov, 1984, 2 | DH |
Entropy of fusion
| ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 12.7 | 314.2 | Golovanova and Kolesov, 1984, 2 | DH |
Reaction thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
+
=
By formula: Cl2 + C2Cl2F2 = C2Cl4F2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -171.9 ± 2.3 | kJ/mol | Cm | Lacher, McKinley, et al., 1949 | gas phase; Heat of chlorination at 363 °K |
IR Spectrum
Go To: Top, Phase change data, Reaction thermochemistry data, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- SOLUTION (10% CCl4 FOR 5000-1330, 10% CS2 FOR 1330-625 CM-1); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (2% IN CCl4 FOR 3800-1333 AND 2% IN CS2 FOR 1333-450 CM-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Gas Chromatography
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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | SPB-1 | 702. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
| Capillary | SPB-1 | 702. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
| Capillary | SPB-1 | 785. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: not specified |
| Capillary | OV-1 | 785. | Ramsey and Flanagan, 1982 | Program: not specified |
References
Go To: Top, Phase change data, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, 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]
Golovanova and Kolesov, 1984
Golovanova, Y.G.; Kolesov, V.P.,
Enthalpies of melting, melting temperatures, and cryoscopic constants of some haloorganic compounds,
Vestn. Mosk. Univ., Ser. 2: Khim., 1984, 25, 244. [all data]
Golovanova and Kolesov, 1984, 2
Golovanova, Yu.G.; Kolesov, V.P.,
Enthalpies of melting, melting temperatures, and cryoscopic constants of some haloorganic compounds, Vestn. Mosk Univ.,
Ser. 2: Khim., 1984, 25(3), 244-248. [all data]
Lacher, McKinley, et al., 1949
Lacher, J.R.; McKinley, J.J.; Walden, C.; Lea, K.; Park, J.D.,
Reaction heats of organic fluorine compounds. II. The vapor phase heats of chlorination of some simple fluoroolefins,
J. Am. Chem. Soc., 1949, 71, 1334-1337. [all data]
Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D.,
Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J.,
Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse,
J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5
. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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