Visual MINTEQ is a freeware chemical equilibrium model for the calculation of metal speciation, solubility equilibria, sorption etc. for natural waters. It combines state-of-the-art descriptions of sorption and complexation reactions with easy-to-use menus and options for importing and exporting data from/to Excel. Chemical equilibrium modelling has never been easier!
The code, originally built on USEPA's MINTEQA2 software, is maintained by Jon Petter Gustafsson at KTH, Sweden, since 2000.
Visual MINTEQ will run on most Windows platforms and relies on .NET Framework. For more details, see here.
Version 3.0 represents a major new release. The interface code has been completely rewritten in VB.NET. The download and installation procedures have changed, and a number of new options has also been introduced...
Visual MINTEQ can simulate the chemical composition in solutions in contact with gases, solid compounds and particle surfaces. To determine whether it is relevant for you, check the following list of what Visual MINTEQ can and cannot do...
In 2009 Visual MINTEQ was the second-most used chemical equilibrium software application among researchers publishing in Elsevier journals. Probably this is because it is easy to learn, yet powerful, for many kinds of chemical equilibrium problems.