lib.mEoS.R125

Fluid info

  • CAS Number: 354-33-6

  • Formula: CHF2CF3

  • Synonym: R125

  • Molecular weigth: 120.0214 g/mol

  • Tc: 339.1730 K

  • Pc: 3.6177 MPa

  • ρc: 573.5823 kg/m³

  • Tt: 172.5200 K

  • Tb: 225.0600 K

  • Acentric factor: 0.3052

  • Dipole moment: 1.5630 Debye

Equation of state

  • Lemmon, E.W. Jacobsen, R.T; A New Functional Form and New Fitting Techniques for Equations of State with Application to Pentafluoroethane (HFC-125). J. Phys. Chem. Ref. Data 34(1) (2005) 69-108, http://dx.doi.org/10.1063/1.1797813

  • Outcalt, S.L., McLinden, M.O.; Equations of State for the Thermodynamic Properties of R32 (Difluoromethane) and R125 (Pentafluoroethane). Int. J. Thermophysics 16(1) (1995) 79-89., http://dx.doi.org/10.1007/BF01438959

  • Sunaga, H., Tillner-Roth, R., Sato, H., Watanabe, K.; A Thermodynamic Equation of State for Pentafluoroethane (R-125). Int. J. Thermophys., 19(6) (1998) 1623-1635, http://dx.doi.org/10.1007/BF03344914

  • Piao, C.-C., Noguchi, M.; An International Standard Equation of State for the Thermodynamic Properties of HFC-125 (Pentafluoroethane). J. Phys. Chem. Ref. Data, 27(4) (1998) 775-806, http://dx.doi.org/10.1063/1.556021

  • Span, R., Wagner, W.; Equations of State for Technical Applications. III. Results for Polar Fluids. Int. J. Thermophys., 24(1) (2003) 111-162, http://dx.doi.org/10.1023/A:1022362231796

  • Astina, I.M., Sato, H.; A Rational Fundamental Equation of State for Pentafluoroethane with Theoretical and Experimental Bases. Int. J. Thermophys., 25(1) (2004) 113-131, http://dx.doi.org/10.1023/B:IJOT.0000022330.46522.68

  • Vasserman A.A., Fominsky D.V.; Equations of State for the Ozone-Safe Refrigerants R32 and R125. Int. J. Thermophysics 22(4) (2001) 1089-1098, http://dx.doi.org/10.1023/a_1010699806169

  • Sun, L., Ely, J.F.; Universal equation of state for engineering application: Algorithm and application to non-polar and polar fluids. Fluid Phase Equilib., 222-223 (2004) 107-118, http://dx.doi.org/10.1016/j.fluid.2004.06.028

Viscosity

  • Huber, M.L., Laesecke, A.; Correlation for the Viscosity of Pentafluoroethane (R125) from the Triple Point to 500 K at Pressures up to 60 MPa. Ind. Eng. Chem. Res. 45(12) (2006) 4447-4453, http://dx.doi.org/10.1021/ie051367l

  • Huber, M.L., Laesecke, A., Perkins, R.A.; Model for the Viscosity and Thermal Conductivity of Refrigerants, Including a New Correlation for the Viscosity of R134a. Ind. Eng. Chem. Res., 42(13) (2003) 3163-3178, http://dx.doi.org/10.1021/ie0300880

Thermal Conductivity

  • Perkins, R.A., Huber, M.L.; Measurement and Correlation of the Thermal Conductivity of Pentafluoroethane (R125) from 190 K to 512 K at Pressures to 70 MPa. J. Chem. Eng. Data 51(3) (2006) 898-904, http://dx.doi.org/10.1021/je050372t

  • Huber, M.L., Laesecke, A., Perkins, R.A.; Model for the Viscosity and Thermal Conductivity of Refrigerants, Including a New Correlation for the Viscosity of R134a. Ind. Eng. Chem. Res., 42(13) (2003) 3163-3178, http://dx.doi.org/10.1021/ie0300880

Calculation example

Using the first option for equation of state, we can get this diagram plots with the liquid-gas saturation region:

_images/R125.png

The diagram is generated with this module running with the compound name as parameter or edited in file

python3 plotMEoS.py R125