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Cyclobutane, octafluoro-

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References, Notes

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

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas  CmAndreevskii and Antonova, 1982uncertain value: -1510. kJ/mol
Deltafgas-1488.kJ/molCcbKolesov, Talakin, et al., 1968Correction of Kolesov, Talakin, et al., 1964

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

Quantity Value Units Method Reference Comment
liquid291.1J/mol*KN/AFurukawa, McCoskey, et al., 1954 

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
222.4296.41Ponomareva, 1982T = 240 to 340 K. Value is unsmoothed experimental datum: Cp given as 1.112 J/g*K.
209.77268.52Furukawa, McCoskey, et al., 1954T = 17 to 270 K. Value is unsmoothed experimental datum.

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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil267.3KN/APCR Inc., 1990BS
Tboil266.88KN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.2 K; TRC
Tboil223.KN/APark, Benning, et al., 1947Uncertainty assigned by TRC = 10. K; TRC
Quantity Value Units Method Reference Comment
Tfus233.KN/APark, Benning, et al., 1947Uncertainty assigned by TRC = 5. K; TRC
Quantity Value Units Method Reference Comment
Ttriple232.96KN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.2 K; TRC
Ttriple232.96KN/AFurukawa, McCoskey, et al., 1954, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc388.46KN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.3 K; TRC
Tc388.44KN/AMousa, Kay, et al., 1972Uncertainty assigned by TRC = 0.2 K; TRC
Tc388.37KN/ADouslin, Moore, et al., 1959Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Pc27.84barN/AKrauss and Stephan, 1989Uncertainty assigned by TRC = 0.05 bar; TRC
Pc27.85barN/AMousa, Kay, et al., 1972Uncertainty assigned by TRC = 0.0344 bar; TRC
Pc27.775barN/ADouslin, Moore, et al., 1959Uncertainty assigned by TRC = 0.081 bar; TRC
Quantity Value Units Method Reference Comment
Vc0.325l/molN/ADouslin, Moore, et al., 1959Uncertainty assigned by TRC = 0.02 l/mol; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
23.721261.25N/AFurukawa, McCoskey, et al., 1954P = 78.78; DH
23.5304.AStephenson and Malanowski, 1987Based on data from 289. - 348. K.; AC
23.2358.AStephenson and Malanowski, 1987Based on data from 343. - 388. K.; AC
24.9259.AStephenson and Malanowski, 1987Based on data from 233. - 274. K. See also Furukawa, McCoskey, et al., 1954, 2.; AC
25.248.N/AKletskii and Petrik, 1967Based on data from 233. - 388. K.; AC
25.254.N/AMartin, 1962Based on data from 234. - 269. K. See also Boublik, Fried, et al., 1984.; AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
90.80261.25Furukawa, McCoskey, et al., 1954P; DH

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
233. - 388.374.2541007.399-30.205Kletskii and Petric, 1967Coefficents calculated by NIST from author's data.

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.7682232.96crystaline, IliquidFurukawa, McCoskey, et al., 1954DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
11.89232.96crystaline, IliquidFurukawa, McCoskey, et al., 1954DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 by: 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

Cyclobutane, octafluoro- + 4sodium = 4carbon + 8sodium fluoride

By formula: C4F8 + 4Na = 4C + 8FNa

Quantity Value Units Method Reference Comment
Deltar-2989. ± 9.2kJ/molCcbKolesov, Talakin, et al., 1968gas phase; Correction of Kolesov, Talakin, et al., 1964

2Ethene, tetrafluoro- = Cyclobutane, octafluoro-

By formula: 2C2F4 = C4F8

Quantity Value Units Method Reference Comment
Deltar-210.kJ/molEqkAtkinson and Trenwith, 1953gas phase; At 527-800 °K

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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IR spectrum
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Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


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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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
NIST MS number 9037

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

Andreevskii and Antonova, 1982
Andreevskii, D.N.; Antonova, Z.A., Development of an increment scheme for calculating the thermodynamic properties of organic polyfluoro compounds, J. Appl. Chem. USSR, 1982, 55, 582-587. [all data]

Kolesov, Talakin, et al., 1968
Kolesov, V.P.; Talakin, O.G.; Skuratov, S.M., Enthalpy of formation of some specimens of amorphous carbon, Russ. J. Phys. Chem. (Engl. Transl.), 1968, 42, 1218-1220. [all data]

Kolesov, Talakin, et al., 1964
Kolesov, V.P.; Talakin, O.G.; Skuratov, S.M., Standard enthalpy of formation of perfluorocyclobutane, Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 930-931. [all data]

Furukawa, McCoskey, et al., 1954
Furukawa, G.T.; McCoskey, R.E.; Reilly, M.L., Heat capacity, heats of transitions, fusion and vaporization, and vapor pressure of octafluorocyclobutane, J. Res., 1954, NBS 52, 11-16. [all data]

Ponomareva, 1982
Ponomareva, O.P., Study of the isobaric heat capacity of Freon-113 and Freon-C318 in a broad range of parametric conditions, Teplofiz. Svoistva Veshchestv i Materialov, Moskva, 1982, 16, 64-70. [all data]

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

Krauss and Stephan, 1989
Krauss, R.; Stephan, K., Thermal Conductivity of Refrigerants in a Wide Range of Temperature and Pressure, J. Phys. Chem. Ref. Data, 1989, 18, 43. [all data]

Park, Benning, et al., 1947
Park, J.D.; Benning, A.F.; Downing, F.B.; Laucius, J.F.; McHarness, R.C., Synthesis of Tetrafluoroethylene. Pyrolysis of Monochlorodifluoromethane, Ind. Eng. Chem., 1947, 39, 343-8. [all data]

Furukawa, McCoskey, et al., 1954, 2
Furukawa, G.T.; McCoskey, R.E.; Reilly, M.L., Heat capacity, heats of transitions, fusion, and vaporization, and vapor pressure of octafluorocyclobutane, J. RES. NATL. BUR. STAN., 1954, 52, 1, 11, https://doi.org/10.6028/jres.052.003 . [all data]

Mousa, Kay, et al., 1972
Mousa, A.H.N.; Kay, W.B.; Kreglewski, A., The critical constants of binary mixtures of certain perfluoro-compounds with alkanes, J. Chem. Thermodyn., 1972, 4, 301-11. [all data]

Douslin, Moore, et al., 1959
Douslin, D.R.; Moore, R.T.; Waddington, G., The pressure-volume-temperature properties of perfluorocyclobutane: equations of state, viral coefficients and intermolecular potential energy functions, J. Phys. Chem., 1959, 63, 1959. [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]

Kletskii and Petrik, 1967
Kletskii, A.V.; Petrik, L.E., Zh. Fiz. Khim., 1967, 41, 5, 1183. [all data]

Martin, 1962
Martin, J.J., Thermodynamic Properties of Perfluorocyclobutane., J. Chem. Eng. Data, 1962, 7, 1, 68-72, https://doi.org/10.1021/je60012a020 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Kletskii and Petric, 1967
Kletskii, A.B.; Petric, L.E., Dependence of Vapor Pressure of Perfluorocyclobutane, Zh. Fiz. Khim., 1967, 41, 1183-1184. [all data]

Atkinson and Trenwith, 1953
Atkinson, B.; Trenwith, A.B., 424. The thermal decomposition of tetrafluorethylene, J. Chem. Soc. London, 1953, 2082-2087. [all data]


Notes

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