Phreeqc Interactive Alpha 2.18.3.5570 that could have been downloaded from our website for free. This free software was originally produced by U.S. Geological Survey. The default filename for the program's installer is phreeqci2.exe. The following version: 2.1 was the most frequently downloaded one by the program users. Phreeqc Interactive Alpha belongs to Education Tools.
From the developer:
PHREEQC can be used as a specialization program to calculate saturation indices and the distribution of aqueous species. Distribution of redox elements among their valence states can be based on a specified pe or any redox couple for which data are available. PHREEQC allows the concentration of an element to be adjusted to obtain equilibrium (or a specified saturation index or gas partial pressure) with a specified phase
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