Simple three parameter equations for correlating liquid phase compositions in subcritical and supercritical systems

- Two Chrastil type expressions to correlate liquid phase data within AARD of 5%.
- Model requires only three tunable parameters.
- Potential to be used for testing self-consistency of experimental data.
- Applicability of the expressions over a wide range of temperatures and pressures.
- Applicability over a wide range of liquid solutes like alcohols, esters and ionic liquids.