Tetrafluoromethane

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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

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Individual Reactions

(Fluorine anion • 4Tetrafluoromethane) + Tetrafluoromethane = (Fluorine anion • 5Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°10.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°79.J/mol*KN/AHiraoka, Nasu, et al., 1995gas phase; Entropy change calculated or estimated; M

(CF3- • 3Tetrafluoromethane) + Tetrafluoromethane = (CF3- • 4Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°14.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°110.J/mol*KN/AHiraoka, Nasu, et al., 1995gas phase; Entropy change calculated or estimated; M

Tetrafluoromethane + 2Water = Carbon dioxide + 4hydrogen fluoride

By formula: CF4 + 2H2O = CO2 + 4HF

Quantity Value Units Method Reference Comment
ΔrH°-174. ± 4.2kJ/molCmGood, Scott, et al., 1956gas phase; HF has 10 moles H2O, see Scott, Good, et al., 1955; ALS
ΔrH°-174. ± 4.2kJ/molCmScott, Good, et al., 1955gas phase; Heat of hydrolysis; ALS

(Trifluoromethyl cation • 2Tetrafluoromethane) + Tetrafluoromethane = (Trifluoromethyl cation • 3Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°12.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°88.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

(Trifluoromethyl cation • 3Tetrafluoromethane) + Tetrafluoromethane = (Trifluoromethyl cation • 4Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°12.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°84.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

(Trifluoromethyl cation • Tetrafluoromethane) + Tetrafluoromethane = (Trifluoromethyl cation • 2Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°21.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

(CHF4+ • 2Tetrafluoromethane) + Tetrafluoromethane = (CHF4+ • 3Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°9.6kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°67.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

(CHF4+ • Tetrafluoromethane) + Tetrafluoromethane = (CHF4+ • 2Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°12.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°46.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

(Fluorine anion • 2Tetrafluoromethane) + Tetrafluoromethane = (Fluorine anion • 3Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°17.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°71.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

(Fluorine anion • 3Tetrafluoromethane) + Tetrafluoromethane = (Fluorine anion • 4Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°16.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°79.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

(CF3- • 2Tetrafluoromethane) + Tetrafluoromethane = (CF3- • 3Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°14.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°110.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

(Fluorine anion • Tetrafluoromethane) + Tetrafluoromethane = (Fluorine anion • 2Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°25.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

(CF3- • Tetrafluoromethane) + Tetrafluoromethane = (CF3- • 2Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°14.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°100.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

C4H9+ + Tetrafluoromethane = (C4H9+ • Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°14.kJ/molPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°43.5J/mol*KPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M

Trifluoromethyl cation + Tetrafluoromethane = (Trifluoromethyl cation • Tetrafluoromethane)

By formula: CF3+ + CF4 = (CF3+ • CF4)

Quantity Value Units Method Reference Comment
ΔrH°28.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°79.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

CHF4+ + Tetrafluoromethane = (CHF4+ • Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°21.kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°84.J/mol*KPHPMSHiraoka, Nasu, et al., 1996gas phase; M

Fluorine anion + Tetrafluoromethane = (Fluorine anion • Tetrafluoromethane)

By formula: F- + CF4 = (F- • CF4)

Quantity Value Units Method Reference Comment
ΔrH°27.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

CF3- + Tetrafluoromethane = (CF3- • Tetrafluoromethane)

By formula: CF3- + CF4 = (CF3- • CF4)

Quantity Value Units Method Reference Comment
ΔrH°15.kJ/molPHPMSHiraoka, Nasu, et al., 1995gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KPHPMSHiraoka, Nasu, et al., 1995gas phase; M

2Carbonic difluoride = Carbon dioxide + Tetrafluoromethane

By formula: 2CF2O = CO2 + CF4

Quantity Value Units Method Reference Comment
ΔrH°-45.6 ± 9.2kJ/molEqkAmphlett, Dacey, et al., 1971gas phase; Heat of Decomposition third law at 1200 K; ALS

21,1,1',1'-Tetrakis(difluoroamino)-N-1,1'-trifluorodimethylamine = 4Tetrafluoromethane + 5Nitrogen + 3fluorine

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

Quantity Value Units Method Reference Comment
ΔrH°-3009. ± 13.kJ/molCmSinke, Thompson, et al., 1967gas phase; Energy of explosion; ALS

CF5N = Tetrafluoromethane + 0.5Nitrogen + 0.5fluorine

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

Quantity Value Units Method Reference Comment
ΔrH°-226. ± 2.kJ/molCcbWalker, 1972gas phase; Decompostion reaction; ALS

Tetrafluoromethane + 0.5Nitrogen + 0.5fluorine = CF5N

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

Quantity Value Units Method Reference Comment
ΔrH°226. ± 2.kJ/molCcbWalker, 1972gas phase; Decompostion reaction; ALS

2Heptafluoromethanetriamine = 2Tetrafluoromethane + 3Nitrogen + 3fluorine

By formula: 2CF7N3 = 2CF4 + 3N2 + 3F2

Quantity Value Units Method Reference Comment
ΔrH°-1467.kJ/molCmSinke, Thompson, et al., 1967gas phase; Energy of explosion; ALS

2Pentafluoroguanidine = 2Tetrafluoromethane + 3Nitrogen + fluorine

By formula: 2CF5N3 = 2CF4 + 3N2 + F2

Quantity Value Units Method Reference Comment
ΔrH°-2059.kJ/molCmSinke, Thompson, et al., 1967gas phase; Energy of explosion; ALS

Octafluoromethanetetramine = Tetrafluoromethane + 2Nitrogen + 2fluorine

By formula: CF8N4 = CF4 + 2N2 + 2F2

Quantity Value Units Method Reference Comment
ΔrH°-935.1kJ/molCmSinke, Thompson, et al., 1967gas phase; Energy of explosion; ALS

Hexafluoromethanediamine = Tetrafluoromethane + Nitrogen + fluorine

By formula: CF6N2 = CF4 + N2 + F2

Quantity Value Units Method Reference Comment
ΔrH°-478.2kJ/molCmSinke, Thompson, et al., 1967gas phase; Energy of explosion; ALS

C5O5W (g) + Tetrafluoromethane (g) = C6F4O5W (g)

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

Quantity Value Units Method Reference Comment
ΔrH°<-20.9kJ/molEqGBrown, Ishikawa, et al., 1990Temperature range: ca. 300-350 K; MS

3Acetonitrile, trifluoro- + 5Nitrogen trifluoride = 6Tetrafluoromethane + 4Nitrogen

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

Quantity Value Units Method Reference Comment
ΔrH°-3449.3 ± 0.92kJ/molEqkWalker, Sinke, et al., 1970gas phase; ALS

4sodium + Tetrafluoromethane = carbon + 4sodium fluoride

By formula: 4Na + CF4 = C + 4FNa

Quantity Value Units Method Reference Comment
ΔrH°-1362. ± 9.2kJ/molCcbVorob'ev and Skuratov, 1960gas phase; ALS

Tetrafluoromethane + 4hydrogen fluoride = Methane + 4fluorine

By formula: CF4 + 4HF = CH4 + 4F2

Quantity Value Units Method Reference Comment
ΔrH°-1922. ± 13.kJ/molCmJessup, McCoskey, et al., 1955gas phase; ALS

3Ethane, hexafluoro- + 2Nitrogen trifluoride = 6Tetrafluoromethane + Nitrogen

By formula: 3C2F6 + 2F3N = 6CF4 + N2

Quantity Value Units Method Reference Comment
ΔrH°-1304. ± 13.kJ/molCcbSinke, 1966gas phase; ALS

(CHF4+ • 3Tetrafluoromethane) + Tetrafluoromethane = (CHF4+ • 4Tetrafluoromethane)

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

Quantity Value Units Method Reference Comment
ΔrH°9.6kJ/molPHPMSHiraoka, Nasu, et al., 1996gas phase; M

Ethene, tetrafluoro- + 2fluorine = 2Tetrafluoromethane

By formula: C2F4 + 2F2 = 2CF4

Quantity Value Units Method Reference Comment
ΔrH°-1037.3kJ/molCcbDomalski and Armstrong, 1967solid phase; ALS

References

Go To: Top, Reaction thermochemistry data, Notes

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

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]

Notes

Go To: Top, Reaction thermochemistry data, References