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pourbaix diagram

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I followed the instruction described at www.gwb.com/pourbaix.php to generate pourbaix diagrams. However it does not give the same result. (please refer the attached file)

The only difference I can find is the poubaix diagram generated in the instruction is generated using the standard version, and mine is generated using the student version.


Please let me know how I can fix this.


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Guest Melika Sharifi

Hi Wonjung88,


If you take a closer look at the tutorial Pourbaix diagram, you will see the "speciate over x-y" option is on for SO4--. If you know that your complexing species reacts under changing Eh or pH, you can include that in your graph using the "speciate over x", "speciate over y", or "speciate over x-y" option from the pulldown next to where you define the activity of your complexing species.



Melika Sharifi

Aqueous Solutions LLC

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