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Free sample program

Equilibrium calculations based on the Extended UNIQUAC model can be performed by calls from visual basic programs such as Microsoft Excel. Dynamic Link Libraries (DLL-files) containing simulation tools for solid-liquid equilibrium and vapor-liquid equilibrium calculations are available.

A sample program can be downloaded for free. The program includes the ions Na⁺, H⁺, Cl^-, HSO₄^-, SO₄^2-, and OH^-. Based on the users input of temperature and composition, the program performs:

• Solid-liquid equilibrium calculations.
• Bubble point calculations determining the vapor pressure of the solution at a given temperature and composition.
• Calculation of saturation index (Degree of supersaturation).
• Calculation of enthalpy of formation and heat capacity.
• Calculation of water activity and mean molal activity coefficient
• Calculation of freezing point depression.
• Calculation of phase diagrams for salt systems

The calculation accuracy achieved with this sample program is typical for the performance of the extended versions of the program too. The license will expire after approximately one year. After the license has expired, you can come back and download a new version. The sample program comes with a short manual that explains about installation and use of the program.

Download free sample program

For further information, please contact us at:

Aqueous Solutions Aps
Snogegaardsvej 149
2860 Soborg
Denmark
kaj@phasediagram.dk
Telephone +45 4444 5775