A corresponding states treatment of the liquid–vapor saturation line

In this work we analyze correlations for the maxima of products of some liquid–vapor saturation properties. These points define new characteristic properties of each fluid that are shown to exhibit linear correlations with the critical properties. We also demonstrate that some of these properties are well correlated with the acentric factor. An application is made to predict the properties of two new low global warming potential (GWP) refrigerants.

► Correlations arising from the maxima of products of properties in the coexistence line.
► Analysis of maxima along the vapor pressure curve.
► Correlations for the maximum of the saturated vapor enthalpy curve.
► Prediction of properties of the new low GWP refrigerants HFO 1234yf and HFO 1234ze (E).