Thermodynamic Properties of R-23, Trifluoromethane

Temperature Pressure Density Volume Int. energy Enthalpy Entropy C, CT Sound speed Joule-Thomson Therm, cond. Viscosity 

Temperature K Pressure MPa Density mol/dm3 Volume dm3/mol Int. energy kj/mol Enthalpy kj/mol Entropy kJ/(mol K) c, kJ/(mol K) c kJ/(mol-K) Sound speed m/s Joule-Thomson K/MPa Therm, cond. mW/(m-K) Viscosity lPa s 

The values in these tables were generated from the NIST REFPROP software (Lemmon, E. W., McLinden, M. O., and Huber, M. L., NIST Standard Reference Database 23 Reference Fluid Thermodynamic and Transport Properties—REFPROP, National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, Md., 2002, Version 7.1). The primary source for the thermodynamic properties is Penoncello, S. G., Lemmon, E. W., Jacobsen, R. T., and Shan, Z., A Fundamental Equation for Triflurormethane (R-23), /. hqs. Chem. Ref. Data, 32(4) 1473-1499, 2003. The source for viscosity and thermal conductivity is Shan,Z., Penoncello, S. G., and Jacobsen, R. T., A Generalized Model for Viscosity and Thermal Conductivity of Trifluoromethane (R-23), ASHRAE Trans. 106 1-11,2000. 

The uncertainties of the equation of state are 0.1% in density, 0.5% in heat capacities and speed of sound, and 0.2% in vapor pressures. Uncertainties in the critical region will be higher. The uncertainty in viscosity is 1%. The uncertainty in thermal conductivity is 2%. 

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