Leaching

[Sergio]

Good evening David.
I would like to understand how can I use the PHREEQC to obtain results about leaching of a solid sample with the concentrations below (ppm):
Cd 0,005; Cr 0,007; and others...
How can I put the element if there is not in the datebase, for example NO3-.
My goal is understand the interactions between water and that sample, inside the soil, after mixing, and if there will be changes of pH and pE. I need to know if the changes of pH and pE aftermath in some new ionic elements in these enviroment aqueous.
Ask me if you need more information. Right?
Thanks a lot. I'm waiting for your response.

[Sergio]

I need to know if the software can explain analyses hydrogeochemical. I know that can analyse aqueous solution. So I think that is a similar situation.