Ethene, 2-chloro-1,1-difluoro-
- Formula: C2HClF2
- Molecular weight: 98.479
- IUPAC Standard InChI: InChI=1S/C2HClF2/c3-1-2(4)5/h1H
- IUPAC Standard InChIKey: HTHNTJCVPNKCPZ-UHFFFAOYSA-N
- CAS Registry Number: 359-10-4
- 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: Ethylene, 2-chloro-1,1-difluoro-; Chloro-1,1-difluoroethylene; 1,1-Difluorochloroethylene; 2-Chloro-1,1-difluoroethylene; CF2=CHCl; 2,2-Difluoro-1-chloroethene; 1,1-Difluoro-2-chloroethylene; F 1122; FC 1122; HCFC 1122; R 1122; Ethene, 1,1-difluoro-2-chloro
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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 | 256. | K | N/A | Farchan Laboratories, 1990 | BS |
| Quantity | Value | Units | Method | Reference | Comment |
| Tc | 400.55 | K | N/A | Mears, Stahl, et al., 1955 | Uncertainty assigned by TRC = 0.7 K; by sealed tube method; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Pc | 44.0256 | atm | N/A | Mears, Stahl, et al., 1955 | Uncertainty assigned by TRC = 1.0888 atm; from vapor pressure equation at Tc; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ρc | 5.07 | mol/l | N/A | Mears, Stahl, et al., 1955 | Uncertainty assigned by TRC = 0.15 mol/l; rectilinear diameters; TRC |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 5.62 | 233. | BG | Mears, Stahl, et al., 1955, 2 | AC |
| 5.11 | 273. | BG | Mears, Stahl, et al., 1955, 2 | AC |
| 4.42 | 313. | BG | Mears, Stahl, et al., 1955, 2 | AC |
| 3.37 | 353. | BG | Mears, Stahl, et al., 1955, 2 | AC |
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: H2 + C2Cl2F2 = C2HClF2 + HCl
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -21.56 | kcal/mol | Chyd | Lacher, Kianpour, et al., 1956 | gas phase; At 298 K |
2 +
=
+
By formula: 2H2 + C2HClF2 = C2H4F2 + HCl
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -61.77 | kcal/mol | Chyd | Lacher, Kianpour, et al., 1956 | gas phase; At 410 K |
Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| IE (evaluated) | 9.80 ± 0.04 | eV | N/A | N/A | L |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.76 | S | Scott and Russell, 1972 | LLK |
| 9.84 | PE | Lake and Thompson, 1970 | RDSH |
Mass spectrum (electron ionization)
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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
Spectrum
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Additional Data
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| Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | THE M.W. KELLOGG CO., JERSEY CITY, N.J., USA |
| NIST MS number | 35030 |
UV/Visible spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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| Source | Lacher and Park., 1950 |
|---|---|
| Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
| Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
| Source reference | RAS UV No. 10183 |
| Instrument | Beckman DU |
| Melting point | - 138.5 |
| Boiling point | - 18.5 |
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 | 339. | 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 | 339. | 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 |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Farchan Laboratories, 1990
Farchan Laboratories,
Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]
Mears, Stahl, et al., 1955
Mears, W.H.; Stahl, R.F.; Orfeo, S.R.; Shair, R.C.; Kells, L.F.; Thompson, W.; McCann, H.,
Thermodynamic Properties of Halogenated Ethanes and Ethylenes,
Ind. Eng. Chem., 1955, 47, 1449. [all data]
Mears, Stahl, et al., 1955, 2
Mears, Whitney H.; Stahl, Richard F.; Orfeo, S. Robert; Shair, Robert C.; Kells, Lyman F.; Thompson, Walter; McCann, Harold,
Thermodynamic Properties of Halogenated Ethanes and Ethylenes,
Ind. Eng. Chem., 1955, 47, 7, 1449-1454, https://doi.org/10.1021/ie50547a052
. [all data]
Lacher, Kianpour, et al., 1956
Lacher, J.R.; Kianpour, A.; Oetting, F.; Park, J.D.,
Reaction calorimetry. The hydrogenation of organic fluorides and chlorides,
Trans. Faraday Soc., 1956, 52, 1500-1508. [all data]
Scott and Russell, 1972
Scott, J.D.; Russell, B.R.,
Vacuum-ultraviolet spectral studies of several chlorofluoroethylenes,
J. Am. Chem. Soc., 1972, 94, 2634. [all data]
Lake and Thompson, 1970
Lake, R.F.; Thompson, H.,
Photoelectron spectra of halogenated ethylenes,
Proc. Roy. Soc. (London), 1970, A315, 323. [all data]
Lacher and Park., 1950
Lacher, J.R.; Park., J.D.,
J. Am. Chem. Soc., 1950, 72, 5486. [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]
Notes
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- Symbols used in this document:
IE (evaluated) Recommended ionization energy Pc Critical pressure Tboil Boiling point Tc Critical temperature ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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