An additive method by Le Bas has been adopted to predict the liquid molar volumes at normal boiling points vb for pure substances. Its calculation procedure is reviewed in detail and results obtained are compared with the experimental vb data. It is acknowledged that the additive method can be applied with good performances to predict vb of various substances except small molecules such as acetone, methanol, ethanol and water.
Prediction of Vapor-Liquid Equilibria of Binary Systems Consisting of Homogeneous Components by Using Wilson Equation with Parameters Estimated from Pure-Component Properties|
Shigetoshi KOBUCHI、Kei TAKAKURA、Setsuko YONEZAWA、Kenji FUKUCHI、Yasuhiko ARAI
A simple method previously proposed for estimating Wilson parameters on the basis of solubility parameters and molar volumes given from group-contribution methods and normal boiling points of pure substances has been adopted to predict the vapor-liquid equilibria of binary systems consisting of homogeneous components. The prediction performances are examined and discussed.