spring2015 Posted January 4, 2015 Share Posted January 4, 2015 Hi all, I want to draw Pb-S pourbaix diagram. For example mixing 0.01mM Na2S and 1mM PbNO3 in water at 25C. I would appreciate if you could tell me the steps of drawing that diagram? Quote Link to comment Share on other sites More sharing options...
katezat Posted January 5, 2015 Share Posted January 5, 2015 You can create a pourbaix diagram using the GWB program Act2. First, you will need to choose a main species, either Pb or S and then set your axis, pH (H+) and Eh (e-). You can learn how to set up an Eh-pH diagram using the GWB Essentials Guide (under the Doc tab on the GWB dashboard) in the "Using Act2" section. To incorporate additional species (i.e. Na+ or NO3-) in the diagram, you can add them under the "in the presence of" section of the Basis pane in Act2. Additionally, you can choose to decouple redox pairs (i.e. NO2-from NO3-, etc.) if you want to allow different species to coexist. You can read more on Redox couples in the Essentials Guide, Section 7.3 Redox disequilibrium. Spring2015 I noticed you found another topic helpful. For everyone else: http://forum.gwb.com/index.php?showtopic=2125&do=findComment&comment=5074 Quote Link to comment Share on other sites More sharing options...
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