Ethane, pentafluoro-

• Formula: C₂HF₅
• Molecular weight: 120.0214
• IUPAC Standard InChI: InChI=1S/C2HF5/c3-1(4)2(5,6)7/h1H Copy

  
• IUPAC Standard InChIKey: GTLACDSXYULKMZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 354-33-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: C2F5H; Pentafluoroethane; 1,1,1,2,2-Pentafluoroethane; Fc-125; Genetron HFC 125; R-125
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Fluid Properties
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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 vaporization

Enthalpy of fusion

References

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

Young, Fukuhara, et al., 1940
Young, D.W.S.; Fukuhara, N.; Bigelow, L.A., The Action of Elementary Fluorine Upon Organic Compounds VIII. The Influence of Dilution on the Vapor Phase Fluorination of Ethane, J. Am. Chem. Soc., 1940, 62, 1171. [all data]

Yata, Hori, et al., 1996
Yata, J.; Hori, M.; Kawakatsu, H.; Minamiyama, T., Measurements of refractive index of alternative refrigerants, Int. J. Thermophys., 1996, 17, 65-74. [all data]

Kuwabara, Aoyama, et al., 1995
Kuwabara, S.; Aoyama, H.; Sato, H.; Watanabe, K., Vapor-liquid coexistence curves in the critical region and the critical temperatures and densities of difluoromethane and pentafluoroehtane, J. Chem. Eng. Data, 1995, 40, 112-116. [all data]

Higashi, 1994
Higashi, Y., Critical parameters for HFC134a, HFC32 and HFC125, Int. J. Refrig., 1994, 17, 524-531. [all data]

Wilson, Wilding, et al., 1992
Wilson, L.C.; Wilding, W.V.; Wilson, G.M.; Rowley, R.L.; Felix, V.M.; Chisolm-Carter, T., Thermophysical properties of HFC-125, Fluid Phase Equilib., 1992, 80, 167-77. [all data]

Tsvetkov, Kletskii, et al., 1995
Tsvetkov, O.B.; Kletskii, A.V.; Laptev, Yu.A.; Asambaev, A.J.; Zausaev, I.A., Thermal conductivity and PVT measurements of pentafluoroethane ( refrigerant HFC-125), Int. J. Thermophys., 1995, 16, 1185-92. [all data]

Ye, Sato, et al., 1995
Ye, F.; Sato, H.; Watanabe, K., Gas-phase PVT properties and vapor pressure of pentafluoroethane (HFC-125) determined according to the burnett method, J. Chem. Eng. Data, 1995, 40, 148-152. [all data]

Sagawa, Sato, et al., 1994
Sagawa, T.; Sato, H.; Watanabe, K., Thermodynamic properties of HFC-125 based on (p,V,T) measurements, High Temp. - High Pressures, 1994, 26, 193-201. [all data]

Weber, 1999
Weber, F., Measurement of the specific enthalpy of vaporization of the alternative refrigerant pentafluoroethane in the temperature range from 175 K to 220 K, PTB-Mitteilungen, 1999, 109, 6, 469. [all data]

L«65533»ddecke and Magee, 1996
L«65533»ddecke, T.O.; Magee, J.W., Molar heat capacity at constant volume of difluoromethane (R32) and pentafluoroethane (R125) from the triple-point temperature to 345 K at pressures to 35 MPa, Int J Thermophys, 1996, 17, 4, 823-849, https://doi.org/10.1007/BF01439192 . [all data]

Notes

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• Symbols used in this document:
  

  Pc	Critical pressure
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization
  ρc	Critical density

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