Fluorodichloromethane

• Formula: CHCl₂F
• Molecular weight: 102.923
• IUPAC Standard InChI: InChI=1S/CHCl2F/c2-1(3)4/h1H Copy

  
• IUPAC Standard InChIKey: UMNKXPULIDJLSU-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-43-4
• 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: Methane, dichlorofluoro-; Algofrene Type 5; Arcton 7; Dichlorofluoromethane; Dichloromonofluoromethane; F 21; Freon F 21; Freon 21; FC 21; Genetron 21; Monofluorodichloromethane; CHFCl2; R 21; Dwuchlorofluorometan; UN 1029; CHCl2F; Refrigerant 21; Halon 112; Fluorocarbon-21; R 21 (refrigerant)
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Henry's Law data
  • Gas Chromatography
  • Fluid Properties
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Condensed phase 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

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

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - 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

CCl₂F^- +  =

By formula: CCl₂F^- + H⁺ = CHCl₂F

CN^- +  = (CN^- • )

By formula: CN^- + CHCl₂F = (CN^- • CHCl₂F)

 +  = ( • )

By formula: Cl^- + CHCl₂F = (Cl^- • CHCl₂F)

2 =  + 

By formula: 2CHCl₂F = CHCl₃ + CHClF₂

2 =  + 

By formula: 2CHClF₂ = CHCl₂F + CHF₃

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 compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

CCl₂F^- +  =

By formula: CCl₂F^- + H⁺ = CHCl₂F

Ion clustering 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

CN^- +  = (CN^- • )

By formula: CN^- + CHCl₂F = (CN^- • CHCl₂F)

 +  = ( • )

By formula: Cl^- + CHCl₂F = (Cl^- • CHCl₂F)

IR 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.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Benning, McHarness, et al., 1940
Benning, A.F.; McHarness, R.C.; Markwood, W.H., Jr.; Smith, W.J., Thermodynamic properties of fluorochloromethanes and -ethanes. Heat capacity of the liquid and vapor of three fluorochloromethanes and trifluorotrichloroethane, Ind. and Eng. Chem., 1940, 32, 976-980. [all data]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Benning and McHarness, 1940
Benning, A.F.; McHarness, R.C., Thermodynamic Properties of Fluorochloromethanes and -Ethanes densities and critical constants of three fluorochloromethanes and trifluorotrichloroethane, Ind. Eng. Chem., 1940, 32, 814. [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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Benning and McHarness, 1940, 2
Benning, A.F.; McHarness, R.C., Thermodynamic Properties of Fluorochloromethanes and -Ethanes Vapor Pressure of Three Fluorochloromethanes and Trifluorotichloroethane, Ind. Eng. Chem., 1940, 32, 4, 497-499, https://doi.org/10.1021/ie50364a011 . [all data]

Poutsma, Paulino, et al., 1997
Poutsma, J.C.; Paulino, J.A.; Squires, R.R., Absolute Heats of Formation of CHCl, CHF, and CClF. A Gas-Phase Experimental and G2 Theoretical Study., J. Phys. Chem. A, 1997, 101, 29, 5327, https://doi.org/10.1021/jp970778f . [all data]

Illenberger, Baumgartel, et al., 1979
Illenberger, T.; Baumgartel, H.; Scheunemann, H., Negative Ion Formation in CF₂Cl₂, CF₃Cl, and CFCl₃ Following Low Energy (0-10eV) Impact with Near Monoenergetic Electrons, Chem. Phys., 1979, 37, 1, 21, https://doi.org/10.1016/0301-0104(79)80003-8 . [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [all data]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

Hess and Kemnitz, 1992
Hess, A.; Kemnitz, E., Heterogeneously catalyzed dismutation and conmutation reactions of CHCl₃-nFnchlorofluorocarbons. A kinetic study, Appl. Catal. A:, 1992, 82, 247-257. [all data]

Wang and Leroi, 1983
Wang, F.C.-Y.; Leroi, G.E., Photoionization and fragmentation of halogenated methanes, Ann. Isr. Phys. Soc., 1983, 6, 210. [all data]

Novak, Cvitas, et al., 1981
Novak, I.; Cvitas, T.; Klasinc, L.; Gusten, H., Photoelectron spectra of some halogenomethanes, J. Chem. Soc. Faraday Trans. 2, 1981, 77, 2049. [all data]

Hobrock and Kiser, 1964
Hobrock, D.L.; Kiser, R.W., Electron impact studies of some trihalomethanes: trichloromethane, dichlorofluoro-methane, chlorodifluoromethane, and trifluoromethane, J. Phys. Chem., 1964, 68, 575. [all data]

Doucet, Sauvageau, et al., 1973
Doucet, J.; Sauvageau, P.; Sandorfy, C., Vacuum ultraviolet and photoelectron spectra of fluoro-chloro derivatives of methane, J. Chem. Phys., 1973, 58, 3708. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,liquid	Constant pressure heat capacity of liquid
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  Tboil	Boiling point
  Tc	Critical temperature
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy 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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