WEB-PHREEQ
Category Geochemistry
Publisher  North Dakota State University 
Platform Web/Java, Runs on the WWW.
Status Freeware
Description WEB-PHREEQ calculates equilibrium concentrations (or activities) of chemical species in aqueous solution, and the saturation indices (SI's) of solid phases in equilibrium with a solution, from an input chemical analysis (real or hypothetical) of a solution. The calculation includes the effects of adding phases (solid, liquid, or gas) to the solution, changing the solution's temperature, Eh, or pH, etc. It is run interactively over the WWW.
Cost Free on the WWW
Data formats supported None stated
Supplier in United States of America  North Dakota State University 

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