(Reference Fluid Thermodynamic and Transport Properties Database)
If you need high-accuracy thermodynamic properties but do not have a budget for REFPROP, consider these open-source options: refprop 10 free download 2021
Extensive databases for refrigerants (including low-GWP alternatives), natural gas, hydrocarbons, and more. refprop 10 free download 2021
REFPROP (Reference Fluid Thermodynamic and Transport Properties) is a widely used software library from the National Institute of Standards and Technology (NIST) that provides thermophysical properties (equations of state, transport properties, mixture models) for pure fluids and mixtures. REFPROP 10 is a major version released by NIST that includes updates to fluid models, mixture parameters, and software interfaces. refprop 10 free download 2021
: REFPROP is proprietary software protected by copyright law.