Applications of the Wilson method

The Wilson equation is useful for polar or associating components in nonpolar solvents and for completely miscible liquids.

When you use this thermodynamic method, you should ensure that the following properties are available for each pure component that you are working with:

• Vapor pressure

• Liquid molar volume

While there is no explicit temperature dependence in the Wilson equation's parameters, the derivation is such that you can use the Wilson equation with some confidence over a wide range of temperatures. It is also successful in correlating mixtures that contain polar components.