REFPROP
REFPROP, short for Reference Fluid Properties, is a thermophysical property database and equation-of-state library developed by the National Institute of Standards and Technology (NIST). It provides accurate properties for a large number of pure fluids and fluid mixtures over wide ranges of temperature, pressure, and composition, making it a widely used tool in engineering, research, and education.
REFPROP employs a Helmholtz-energy based equation of state to model the behavior of fluids and mixtures. It
Availability and interfaces: REFPROP is distributed by NIST as a software package with a Windows graphical
Data coverage and licensing: the database includes hundreds of fluids and many mixtures, including refrigerants, hydrocarbons,
Limitations: while REFPROP provides high accuracy within its validated ranges, extrapolation beyond those ranges should be