Tetrafluoromethane
- Formula: CF4
- Molecular weight: 88.0043
- IUPAC Standard InChIKey: TXEYQDLBPFQVAA-UHFFFAOYSA-N
- 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-
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Phase change data
Go To: Top, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 145.1 ± 0.2 | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 89. | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 89.5 | K | N/A | Thorp and Scott, 1956 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 86.85 | K | N/A | Ruff and Keim, 1930 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 89.4 ± 0.8 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 227.5 | K | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tc | 227.5 | K | N/A | Chari, 1960 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 37.45 | bar | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.10 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.142 | l/mol | N/A | Terry, Lynch, et al., 1969 | Uncertainty assigned by TRC = 800. l/mol; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 7.155 | mol/l | N/A | Altunin, Geller, et al., 1987 | Uncertainty assigned by TRC = 0.01 mol/l; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.814 | 145.12 | N/A | Smith and Pace, 1969 | P = 101.325 kPa.; DH |
12.1 | 212. | A | Stephenson and Malanowski, 1987 | Based on data from 195. to 227. K.; AC |
12.3 | 148. | A | Stephenson and Malanowski, 1987 | Based on data from 89. to 163. K.; AC |
11.9 | 182. | A | Stephenson and Malanowski, 1987 | Based on data from 160. to 197. K.; AC |
12.4 | 131. | N/A | Smith and Pace, 1969 | Based on data from 116. to 146. K.; AC |
12.8 | 131. | N/A | Menzel and Mohry, 1933 | Based on data from 93. to 146. K. See also Stephenson and Malanowski, 1987.; AC |
Entropy of vaporization
ΔvapS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
81.41 | 145.12 | Smith and Pace, 1969 | P; DH |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
121.59 to 135.39 | 3.32027 | 376.716 | -31.901 | Regnier, 1972 | Coefficents calculated by NIST from author's data. |
89.71 to 101.46 | 0.63481 | 103.578 | -61.461 | Smith and Pace, 1969 | Coefficents calculated by NIST from author's data. |
92.51 to 145.87 | 4.1682 | 556.616 | -11.43 | Menzel and Mohry, 1933 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.7 | 88. | N/A | Simon, Knobler, et al., 1967 | Based on data from 86. to 89. K.; AC |
17.0 | 76. | N/A | Bondi, 1963 | AC |
14.0 | 83. | A | Menzel and Mohry, 1933 | Based on data from 80. to 86. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.71 | 89.56 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
22.43 | 76.27 | Domalski and Hearing, 1996 | CAL |
7.95 | 89.56 | ||
21.4 | 76.1 | ||
7.7 | 88.4 | ||
19.2 | 76.1 | ||
7.9 | 89.5 |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.4623 | 76.09 | crystaline, II | crystaline, I | Enokida, Shinoda, et al., 1969 | DH |
0.7054 | 89.529 | crystaline, I | liquid | Enokida, Shinoda, et al., 1969 | DH |
1.7092 | 76.27 | crystaline, II | crystaline, I | Smith and Pace, 1969 | DH |
0.7121 | 89.56 | crystaline, I | liquid | Smith and Pace, 1969 | DH |
1.7343 | 76.09 | crystaline, II | crystaline, I | Kostryukov, Samorukov, et al., 1958 | DH |
0.69371 | 88.44 | crystaline, I | liquid | Kostryukov, Samorukov, et al., 1958 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
19.20 | 76.09 | crystaline, II | crystaline, I | Enokida, Shinoda, et al., 1969 | DH |
7.87 | 89.529 | crystaline, I | liquid | Enokida, Shinoda, et al., 1969 | DH |
22.41 | 76.27 | crystaline, II | crystaline, I | Smith and Pace, 1969 | DH |
7.95 | 89.56 | crystaline, I | liquid | Smith and Pace, 1969 | DH |
21.38 | 76.09 | crystaline, II | crystaline, I | Kostryukov, Samorukov, et al., 1958 | DH |
7.74 | 88.44 | crystaline, I | liquid | Kostryukov, Samorukov, et al., 1958 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Streng, 1971
Streng, A.G.,
Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature,
J. Chem. Eng. Data, 1971, 16, 357. [all data]
Thorp and Scott, 1956
Thorp, N.; Scott, R.L.,
Fluorocarbon solutions at low termperatures. I. The liquid mixtures CF4-CHF3, CF4-CH4, CF4-Kr, CH4-Kr.,
J. Phys. Chem., 1956, 60, 670. [all data]
Ruff and Keim, 1930
Ruff, O.; Keim, R.,
The reaction products of carbon with fluorine: I. Tetrafluoromethane.,
Z. Anorg. Allg. Chem., 1930, 192, 249. [all data]
Altunin, Geller, et al., 1987
Altunin, V.V.; Geller, V.Z.; Kremenvskaya, E.A.; Perel'shtein, I.I.; Petrov, E.K.,
Thermophysical Properties of Freons, Methane Ser. Part 2, Vol. 9, NSRDS-USSR, Selover, T. B., Ed., Hemisphere, New York, 1987. [all data]
Chari, 1960
Chari, N.C.,
Thermodynamic Properties of Carbon Tetrafluoride., Ph.D. Dissertation, Univ. Mich., Ann Arbour, MI, 1960. [all data]
Terry, Lynch, et al., 1969
Terry, M.J.; Lynch, J.T.; Bunclark, M.; Mansell, K.R.; Staveley, L.A.K.,
The Densities of Liquid Argon, Krypton, Xenon, Oxygen, Nitrogen, Carbon Monoxide, Methane and Carbon Tetrafluoride Along the Orthobaric Liquid Curve,
J. Chem. Thermodyn., 1969, 1, 413. [all data]
Smith and Pace, 1969
Smith, J.H.; Pace, E.L.,
The thermodynamic properties of carbon tetrafluoride from 12°K to its boiling point. The significance of the parameter {nu},
J. Phys. Chem., 1969, 73, 4232-4236. [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]
Menzel and Mohry, 1933
Menzel, Walter; Mohry, Friedrich,
Die Dampfdrucke des CF4 und NF3 und der Tripelpunkt des CF4,
Z. Anorg. Allg. Chem., 1933, 210, 3, 257-263, https://doi.org/10.1002/zaac.19332100305
. [all data]
Regnier, 1972
Regnier, J.,
Tension de Vapeur de L'Ethane Entre 80 et 135 K,
J. Chim. Phys., 1972, 69, 942-944. [all data]
Simon, Knobler, et al., 1967
Simon, M.; Knobler, C.M.; Duncan, A.G.,
The vapour pressure of tetrafluoromethane from 86 to 146° K,
Cryogenics, 1967, 7, 1-4, 138-140, https://doi.org/10.1016/S0011-2275(67)80053-5
. [all data]
Bondi, 1963
Bondi, A.,
Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments.,
J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Enokida, Shinoda, et al., 1969
Enokida, H.; Shinoda, T.; Mashiko, Y.,
Thermodynamic properties of carbon tetrafluoride from 40°K to its melting point,
Bull. Chem. Soc. Japan, 1969, 42, 3415-3421. [all data]
Kostryukov, Samorukov, et al., 1958
Kostryukov, V.N.; Samorukov, O.P.; Strelkov, P.G.,
Thermodynamic studies at low temperatures VII. Phase transitions in solid BF3, CF4 and SiF4,
Zhur. Fiz. Khim., 1958, 32, 1354-1361. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapS Entropy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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