fluorine

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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.

Quantity Value Units Method Reference Comment
gas,1 bar202.791 ± 0.005J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar202.80J/mol*KReviewChase, 1998Data last reviewed in June, 1982

Gas Phase Heat Capacity (Shomate Equation)

Cp° = 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
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 31.44510
B 8.413831
C -2.778850
D 0.218104
E -0.211175
F -10.43260
G 237.2770
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in June, 1982

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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
B - John E. Bartmess

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

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
Δr-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
Δr-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
Δr226. ± 2.kJ/molCcbWalker, 1972gas phase; Decompostion reaction; ALS

2Heptafluoromethanetriamine = 2Tetrafluoromethane + 3Nitrogen + 3fluorine

By formula: 2CF7N3 = 2CF4 + 3N2 + 3F2

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

Fluorine anion + fluorine = F3-

By formula: F- + F2 = F3-

Quantity Value Units Method Reference Comment
Δr97. ± 10.kJ/molCIDTArtau, Nizzi, et al., 2000gas phase; B

Tetrafluoromethane + 4hydrogen fluoride = Methane + 4fluorine

By formula: CF4 + 4HF = CH4 + 4F2

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

Ethene, tetrafluoro- + 2fluorine = 2Tetrafluoromethane

By formula: C2F4 + 2F2 = 2CF4

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

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes

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

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

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

Artau, Nizzi, et al., 2000
Artau, A.; Nizzi, K.E.; Hill, B.T.; Sunderlin, L.S.; Wenthold, P.G., Bond dissociation energy in trifluoride ion, J. Am. Chem. Soc., 2000, 122, 43, 10667-10670, https://doi.org/10.1021/ja001613e . [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]

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

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