Sulfur hexafluoride

• Formula: F₆S
• Molecular weight: 146.055
• IUPAC Standard InChI: InChI=1S/F6S/c1-7(2,3,4,5)6 Copy

  
• IUPAC Standard InChIKey: SFZCNBIFKDRMGX-UHFFFAOYSA-N Copy
• CAS Registry Number: 2551-62-4
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Sulfur fluoride; OC-6-11; Elegas; SF6; Hexafluorure de soufre; UN 1080; Esaflon; sulphur hexafluoride
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Fluid Properties
• Data at other public NIST sites:
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

Gas Chromatography

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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

Normal alkane RI, non-polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas Chromatography, Notes

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

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

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

Ohta, Yamamuro, et al., 1994
Ohta, T.; Yamamuro, O.; Suga, H., Heat capacity and enthalpy of sublimation of sulful hexafluoride, J. Chem. Thermodyn., 1994, 26, 319-31. [all data]

Matzik and Schneider, 1985
Matzik, I.; Schneider, G.M., Fluid phase equilibria of binary mixtures of sulfur hexafluoride with octane, nonane, hendecane, and cis-decahydronaphthalene at temperature between 280 K and 440 K and at pressures up to 140 MPa, Ber. Bunsen-Ges. Phys. Chem., 1985, 89, 551. [all data]

Goloborod'ko and Khodeeva, 1972
Goloborod'ko, N.P.; Khodeeva, S.M., Russ. J. Phys. Chem. (Engl. Transl.), 1972, 46, 235-7. [all data]

Makarevich, Sokolova, et al., 1968
Makarevich, L.A.; Sokolova, E.S.; Sorina, G.A., Critical Parameters pf Sulfur Hexafluoride, Zh. Fiz. Khim., 1968, 42, 22-3. [all data]

Khodeeva, 1966
Khodeeva, S.M., Visual Observation of Gas-Gas Mixture, Russ. J. Phys. Chem. (Engl. Transl.), 1966, 40, 1061-3. [all data]

Atack and Schneider, 1951
Atack, D.; Schneider, W.G., The Coexistence Curve of Sulfur Hexafluoride in the Critical Region., J. Phys. Colloid Chem., 1951, 55, 532. [all data]

Makarevich and Sokolova, 1973
Makarevich, L.A.; Sokolova, O.N., Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 436-7. [all data]

Ohta, Yamamuro, et al., 1994, 2
Ohta, Tomoko; Yamamuro, Osamu; Suga, Hiroshi, Heat capacity and enthalpy of sublimation of sulfur hexafluoride, The Journal of Chemical Thermodynamics, 1994, 26, 3, 319-331, https://doi.org/10.1016/0021-9614(94)90009-4 . [all data]

Klemm and Henkel, 1932
Klemm, Wilhelm; Henkel, Paul, «65533»ber einige physikalische Eigenschaften von SF6, SeF6, TeF6 und CF4, Z. Anorg. Allg. Chem., 1932, 207, 1, 73-86, https://doi.org/10.1002/zaac.19322070107 . [all data]

Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technical_series₁997-01-01₁.pdf. [all data]

Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J., Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning, Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111 . [all data]

Notes

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• Symbols used in this document:
  

  Pc	Critical pressure
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  Tboil	Boiling point
  Tc	Critical temperature
  Ttriple	Triple point temperature
  Vc	Critical volume
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔsubH	Enthalpy of sublimation
  ρc	Critical density

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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