Tetrafluoromethane

• Formula: CF₄
• Molecular weight: 88.0043
• IUPAC Standard InChI: InChI=1S/CF4/c2-1(3,4)5 Copy

  
• IUPAC Standard InChIKey: TXEYQDLBPFQVAA-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-73-0
• 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: Carbon tetrafluoride; Methane, tetrafluoro-; Arcton 0; Carbon fluoride (CF4); Freon 14; FC 14; Perfluoromethane; CF4; Halon 14; Carbon fluoride; F 14; Halocarbon 14; R 14; UN 1982; Refrigerant 14; CFC 14; R 14 (Refrigerant); Refrigerant R 14; Methane, tetrafluo-
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • Vibrational and/or electronic energy levels
  • Fluid Properties
• Data at other public NIST sites:
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões

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

( • 4) +  = ( • 5)

By formula: (F^- • 4CF₄) + CF₄ = (F^- • 5CF₄)

(CF₃^- • 3) +  = (CF₃^- • 4)

By formula: (CF₃^- • 3CF₄) + CF₄ = (CF₃^- • 4CF₄)

 + 2 =  + 4

By formula: CF₄ + 2H₂O = CO₂ + 4HF

( • 2) +  = ( • 3)

By formula: (CF₃⁺ • 2CF₄) + CF₄ = (CF₃⁺ • 3CF₄)

( • 3) +  = ( • 4)

By formula: (CF₃⁺ • 3CF₄) + CF₄ = (CF₃⁺ • 4CF₄)

( • ) +  = ( • 2)

By formula: (CF₃⁺ • CF₄) + CF₄ = (CF₃⁺ • 2CF₄)

(CHF₄⁺ • 2) +  = (CHF₄⁺ • 3)

By formula: (CHF₄⁺ • 2CF₄) + CF₄ = (CHF₄⁺ • 3CF₄)

(CHF₄⁺ • ) +  = (CHF₄⁺ • 2)

By formula: (CHF₄⁺ • CF₄) + CF₄ = (CHF₄⁺ • 2CF₄)

( • 2) +  = ( • 3)

By formula: (F^- • 2CF₄) + CF₄ = (F^- • 3CF₄)

( • 3) +  = ( • 4)

By formula: (F^- • 3CF₄) + CF₄ = (F^- • 4CF₄)

(CF₃^- • 2) +  = (CF₃^- • 3)

By formula: (CF₃^- • 2CF₄) + CF₄ = (CF₃^- • 3CF₄)

( • ) +  = ( • 2)

By formula: (F^- • CF₄) + CF₄ = (F^- • 2CF₄)

(CF₃^- • ) +  = (CF₃^- • 2)

By formula: (CF₃^- • CF₄) + CF₄ = (CF₃^- • 2CF₄)

C₄H₉⁺ +  = (C₄H₉⁺ • )

By formula: C₄H₉⁺ + CF₄ = (C₄H₉⁺ • CF₄)

 +  = ( • )

By formula: CF₃⁺ + CF₄ = (CF₃⁺ • CF₄)

CHF₄⁺ +  = (CHF₄⁺ • )

By formula: CHF₄⁺ + CF₄ = (CHF₄⁺ • CF₄)

 +  = ( • )

By formula: F^- + CF₄ = (F^- • CF₄)

CF₃^- +  = (CF₃^- • )

By formula: CF₃^- + CF₄ = (CF₃^- • CF₄)

2 =  + 

By formula: 2CF₂O = CO₂ + CF₄

2 = 4 + 5 + 3

By formula: 2C₂F₁₁N₅ = 4CF₄ + 5N₂ + 3F₂

CF₅N =  + 0.5 + 0.5

By formula: CF₅N = CF₄ + 0.5N₂ + 0.5F₂

 + 0.5 + 0.5 = CF₅N

By formula: CF₄ + 0.5N₂ + 0.5F₂ = CF₅N

2 = 2 + 3 + 3

By formula: 2CF₇N₃ = 2CF₄ + 3N₂ + 3F₂

2 = 2 + 3 + 

By formula: 2CF₅N₃ = 2CF₄ + 3N₂ + F₂

=  + 2 + 2

By formula: CF₈N₄ = CF₄ + 2N₂ + 2F₂

=  +  + 

By formula: CF₆N₂ = CF₄ + N₂ + F₂

C₅O₅W (g) +  (g) = C₆F₄O₅W (g)

By formula: C₅O₅W (g) + CF₄ (g) = C₆F₄O₅W (g)

3 + 5 = 6 + 4

By formula: 3C₂F₃N + 5F₃N = 6CF₄ + 4N₂

4 +  =  + 4

By formula: 4Na + CF₄ = C + 4FNa

 + 4 =  + 4

By formula: CF₄ + 4HF = CH₄ + 4F₂

3 + 2 = 6 + 

By formula: 3C₂F₆ + 2F₃N = 6CF₄ + N₂

(CHF₄⁺ • 3) +  = (CHF₄⁺ • 4)

By formula: (CHF₄⁺ • 3CF₄) + CF₄ = (CHF₄⁺ • 4CF₄)

 + 2 = 2

By formula: C₂F₄ + 2F₂ = 2CF₄

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• GAS (100 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH II) FROM HARD COPY; 2 cm^-1 resolution

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

• gas

Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty

• gas; IFS66V (Bruker); 3-Term B-H Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Boxcar Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Happ Genzel Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); NB Strong Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution
• gas; IFS66V (Bruker); Triangular Apodization
  0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm^-1 resolution

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

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

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References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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]

Hiraoka, Nasu, et al., 1995
Hiraoka, K.; Nasu, M.; Fujimaki, S.; Ignacio, E.W.; Yamabe, S., Weak Ion-Molecule Complexes of F-(CF4)n and CF3-(CF4)n, Chem Phys. Let., 1995, 245, 1, 14, https://doi.org/10.1016/0009-2614(95)00980-I . [all data]

Good, Scott, et al., 1956
Good, W.D.; Scott, D.W.; Waddington, G., Combustion calorimetry of organic fluorine compounds by a rotating-bomb method, J. Phys. Chem., 1956, 60, 1080-1089. [all data]

Scott, Good, et al., 1955
Scott, D.W.; Good, W.D.; Waddington, G., Heat of formation of tetrafluoromethane from combustion calorimetry of polytetrafluoroethylene, J. Am. Chem. Soc., 1955, 77, 245-246. [all data]

Hiraoka, Nasu, et al., 1996
Hiraoka, K.; Nasu, M.; Fujimaki, S.; Ignacio, E.W.; Yamabe, S., Gas-Phase Stability and Structure of the Cluster Ions CF3+(CO)n, CF3+(N2)n, CF3+((CF4)n, and CF4H+(CF4)n, J. Phys. Chem., 1996, 100, 13, 5245, https://doi.org/10.1021/jp9530010 . [all data]

Sharma, Meza de Hojer, et al., 1985
Sharma, D.M.S.; Meza de Hojer, S.; Kebarle, P., Stabilities of halonium ions from a study of gas-phase equilibria R+ + XR' = (RXR')+, J. Am. Chem. Soc., 1985, 107, 13, 3757, https://doi.org/10.1021/ja00299a002 . [all data]

Amphlett, Dacey, et al., 1971
Amphlett, J.C.; Dacey, J.R.; Pritchard, G.O., An investigation of the reaction 2COF₂ = CO₂ + CF₄ and the heat of formation of carbonyl fluoride, J. Phys. Chem., 1971, 75, 3024-3026. [all data]

Sinke, Thompson, et al., 1967
Sinke, G.C.; Thompson, C.J.; Jostad, R.E.; Walker, L.C.; Swanson, A.C.; Stull, D.R., Enthalpies of formation and bond energies of some fluoramines, J. Chem. Phys., 1967, 47, 1852-1854. [all data]

Walker, 1972
Walker, L.C., The enthalpy of decomposition of CF₃NF₂(g) to CF₄(g), N₂(g), and F₂(g), J. Chem. Thermodyn., 1972, 4, 219-223. [all data]

Brown, Ishikawa, et al., 1990
Brown, C.E.; Ishikawa, Y.; Hackett, P.A.; Rayner, D.M., J. Am. Chem. Soc., 1990, 112, 2530. [all data]

Walker, Sinke, et al., 1970
Walker, L.C.; Sinke, G.C.; Perettie, D.J.; Janz, G.J., Enthalpy of formation of trifluoroacetonitrile, J. Am. Chem. Soc., 1970, 92, 4525-4526. [all data]

Vorob'ev and Skuratov, 1960
Vorob'ev, A.F.; Skuratov, S.M., Standard enthalpies of formation of CF₄, Zh. Neorg. Khim., 1960, 5, 1398-1401. [all data]

Jessup, McCoskey, et al., 1955
Jessup, R.S.; McCoskey, R.E.; Nelson, R.A., The heat of formation of tetrafluoromethane, J. Am. Chem. Soc., 1955, 77, 244-245. [all data]

Sinke, 1966
Sinke, G.C., The heat of reaction of nitrogen trifluoride and hexafluoroethane, J. Phys. Chem., 1966, 70, 1326-1327. [all data]

Domalski and Armstrong, 1967
Domalski, E.S.; Armstrong, G.T., The heats of combustion of polytetrafluoroethylene (teflon) and graphite in elemental fluorine, J. Res. NBS, 1967, 71, 105-118. [all data]

Zenkevich and Rodin, 2004
Zenkevich, I.G.; Rodin, A.A., Gas chromatographic identification of some volatile toxic fluorine containing compounds by precalculated retention indices, J. Ecol. Chem. (Rus.), 2004, 13, 1, 22-28. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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