NSK – phase equilibria of binary mixtures up to global diagrams

NSK is a graphically-oriented software for calculating phase equilibrium phenomena of binary mixtures described by classical equations of state. It supports the following style of work:

Study how the Gibbs function G(x) and its derivative dG(x)/dx changes with temperature, pressure, and material parameters.
Locate phenomena of interest graphically.
Turn on automatic mode and let NSK calculate loci (points and lines) of the phenomena.

Examples of results:

T-x diagram with two three-phase points and an azeotrope
p-T diagram with a quadruple point
global phase diagram
III → IV → II transition animated in the parameter space

The demo of NSK version 5.87 implements the van der Waals and Redlich–Kwong equations of state and the most common mixing rules. Un-zip the selected archive to a directory and read the README.txt file.

Linux version, X11 required