**R11**

The thermodynamic properties of refrigerant R11 (trichlorofluoromethane, CFCl3, CAS# 75-69-4) are provided with a reduced Helmholtz equation of state as described by:

R.T Jacobsen, S.G. Penoncello and E.W. Lemmon

"A Fundamental Equation for Trichlorofluoromethane (R-11)"

*Fluid Phase Equilibria*, 80 (1992) 45-56

The values of specific enthalpy and entropy are referred to 0 for saturated liquid at -40 C (F). The reference state can be changed using the $Reference directive.

__Viscosity and thermal conductivity have been estimated using a corresponding states approach with propane as the reference fluid as suggested in__:

Klein, S.A., McLinden, M.O., and Laesecke , A., "An improved extended corresponding states method for estimation of viscosity of pure refrigerants and mixtures'

*Int. J. of Refrigeration*, 20, pp. 208-217, 1997

McLinden et al., "An extended corresponding states model for the thermal conductivity of refrigerants and refrigerant mixtures",

*Int. J. of Refrigeration*, 23, pp. 43-63, 2000

The estimated transport properties should be applicable for the range in which the equation of state is valid.

__Surface tension data are provided using the information in:__

Mulero, A., Cachadina, I, and Parra, M.

"Recommended Correlations for the Surface Tension of Common Fluids"

*J.Phys. Chem Ref. Data*, Vol. 41, No.4, 2012