Applications of the UNIQUAC method

The Universal Quasi-Chemical (UNIQUAC) method applies to a wide variety of non-electrolyte liquid mixtures that contain nonpolar or polar components, such as hyrocarbons, alcohols, nitriles, ketones, aldehydes, organic acids, and water. This includes partially miscible systems thereof.

Because the UNIQUAC method uses only two adjustable binary parameters, it cannot always represent high-quality data with accuracy. However, for many typical mixtures, it provides a satisfactory description.

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

• Van der Waals area

• Van der Waals volume