Linking Viscosity to Equations of State Using Residual Entropy Scaling Theory

Abstract In our previous work (J Chem Eng Data 2021, 66(3):1385–1398), a residual entropy scaling (RES) approach was developed to link viscosity [a thermodynamic property calculated with an equation of state (EoS)] using simple polynomial for refrigerants. Here, we present extension this much wider range fluids: all pure fluids and their mixtures whose reference EoS experimental data are available. A total 84 877 points 124 351 collected from 1846 references. The investigated contain wide variety light gases quantum effects at low temperatures dense strong intermolecular association. More than 68.2 % (corresponding the standard deviation) evaluated agree RES model within 3.2 8.0 mixtures, respectively. Compared recommended models implemented in REFPROP 10.0 software (the state-of-the-art thermophysical calculation), if dilute gas is same way, yields similar statistical agreement while having simpler formulation fewer parameters. To use model, package written Python provided supporting information. Graphical