Jump to content
Geochemist's Workbench Support Forum

Species swap for e-


Recommended Posts



This is not an error, but part of the solution procedure. The Eh you specify is used to constrain the initial system, but as the reaction path progresses the program may need to adapt the Basis to match the current system. Try browsing through Chapter 5. Changing the basis and Chapter 6. Equilibrium models of natural waters (specifically section 6.1.4) in the Geochemical and Biogeochemical Reaction Modeling text for more on Basis swapping.


If the oxidation state of the system you are trying to model is controlled in some way, and you are concerned that the Eh changes over the course your simulation, perhaps you should set a fixed Eh path.


Hope this helps,


Brian Farrell

Aqueous Solutions LLC

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...