Version 9.0 includes 105 pure fluids , 5 pseudo-pure fluids (like air), and supports mixtures with up to 20 components .
This is the primary model for most pure fluids, allowing for the computation of all equilibrium properties. nist refprop 9
It calculates a vast range of data, including: Thermodynamic: Density, enthalpy, entropy, heat capacity ( ), speed of sound, and vapor pressure. Transport: Viscosity and thermal conductivity. Version 9