Heptane, hexadecafluoro-

• Formula: C₇F₁₆
• Molecular weight: 388.0494
• IUPAC Standard InChI: InChI=1S/C7F16/c8-1(9,2(10,11)4(14,15)6(18,19)20)3(12,13)5(16,17)7(21,22)23 Copy

  
• IUPAC Standard InChIKey: LGUZHRODIJCVOC-UHFFFAOYSA-N Copy
• CAS Registry Number: 335-57-9
• 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: Hexadecafluoroheptane; Perfluoro-n-heptane; Perfluoroheptane
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, 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

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, 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

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Enthalpy of vaporization

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.

Enthalpy of fusion

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

References

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

Good, Douslin, et al., 1959
Good, W.D.; Douslin, D.R.; Scott, D.W.; George, A.; Lacina, J.L.; Dawson, J.P.; Waddington, G., Thermochemistry and vapor pressure of aliphatic fluorocarbons. A comparison of the C-F and C-H thermochemical bond energies, J. Phys. Chem., 1959, 63, 1133-1138. [all data]

Kolesov and Kozina, 1986
Kolesov, V.P.; Kozina, M.P., Thermochemistry of organic and organohalogen compounds, Russ. Chem. Rev., 1986, 55, 912. [all data]

Starkweather, 1986
Starkweather, H.W., Jr., Melting and crystalline transitions in normal perfluoroalkanes and poly(tetrafluoroethylene), Marcomolecules, 1986, 19, 4, 1131, https://doi.org/10.1021/ma00158a034 . [all data]

Neff and Hickman, 1955
Neff, J.A.; Hickman, J.B., Total Pressure of Certain Binary Liquid Mixtures, J. Phys. Chem., 1955, 59, 42-5. [all data]

Oliver and Grisard, 1951
Oliver, G.D.; Grisard, J.W., Some thermodynamic properties of hexadecafluoroheptane, J. Am. Chem. Soc., 1951, 73, 1688-90. [all data]

Steele, Chirico, et al., 1997
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Vapor Pressure, Heat Capacity, and Density along the Saturted Line, Measurements for Cyclohexanol, 2-Cyclohexen-1-one, 1,2-Dichloropropane, 1,4-Di-tert-butylbenzene, (±)-2-Ethylhexanoic Acid, 1-(m, J. Chem. Eng. Data, 1997, 42, 1021-36. [all data]

Ermakov and Skripov, 1967
Ermakov, G.V.; Skripov, V.P., Saturation Line, Critical Parameters, and Attainable Superheating of the Perfluoroparaffins, Russ. J. Phys. Chem. (Engl. Transl.), 1967, 41, 39-43. [all data]

Milton and Oliver, 1952
Milton, H.T.; Oliver, G.D., High Vapor Pressure of Hexadecafluoroheptane., J. Am. Chem. Soc., 1952, 74, 3951-2. [all data]

Oliver, Blumkin, et al., 1951
Oliver, G.D.; Blumkin, S.; Cunningham, C.W., Some physical properties of hexadecafluoroheptane, J. Am. Chem. Soc., 1951, 73, 5722-5. [all data]

Steele, Chirico, et al., 1997, 2
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Vapor Pressure, Heat Capacity, and Density along the Saturation Line, Measurements for Cyclohexanol, 2-Cyclohexen-1-one, 1,2-Dichloropropane, 1,4-Di- tert -butylbenzene, (±)-2-Ethylhexanoic Acid, 2-(Methylamino)ethanol, Perfluoro- n -heptane, and Sulfolane, J. Chem. Eng. Data, 1997, 42, 6, 1021-1036, https://doi.org/10.1021/je9701036 . [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]

Basarová and Svoboda, 1991
Basarová, Pavlína; Svoboda, Václav, Calculation of heats of vaporization of halogenated hydrocarbons from saturated vapour pressure data, Fluid Phase Equilibria, 1991, 68, 13-34, https://doi.org/10.1016/0378-3812(91)85008-I . [all data]

Oliver and Grisard, 1951, 2
Oliver, G.D.; Grisard, J.W., Some thermodynamic properties of hexadecafluoroheptane, J. Am. Chem. Soc., 1951, 73, 1688-16. [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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]

Oliver and Grisard, 1951, 3
Oliver, G.D.; Grisard, J.W., Some thermodynamic properties of hexadecafluoroheptane, J. Am. Chem. Soc., 1951, 73, 1688-1690. [all data]

Dykyj and Vanko, 1970
Dykyj, J.; Vanko, A., Petrochemica, 1970, 10, 1, 3. [all data]

Glew and Reeves, 1956
Glew, D.N.; Reeves, L.W., Purification of Perfluoro-n-heptane and Perfluoromethylcyclohexane., J. Phys. Chem., 1956, 60, 5, 615-615, https://doi.org/10.1021/j150539a026 . [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]

Starkweather, 1986, 2
Starkweather, Howard W., Melting and crystalline transitions in normal perfluoroalkanes and poly(tetrafluoroethylene), Macromolecules, 1986, 19, 4, 1131-1134, https://doi.org/10.1021/ma00158a034 . [all data]

Notes

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

• Symbols used in this document:
  

  Pc	Critical pressure
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ρc	Critical density

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.