webmaster Posted December 26, 2004 Share Posted December 26, 2004 From: Paul Foellbach Subject: swapping problems in Act I attempt to figure a diagram with y-axis=log((aFe++)/(aCu+)^2) and x-axis=log fO2 to find out the stability of Pyrrotite, Magnetite, Bornite, Chalcopyrit, Hematit and Pyrit. The system contains Cu, Fe and S. The Temperature is 300Â°C. Act2> swap Fe++/(Cu+)^2 for Fe++ -- Cannot identify bottom species in ratio -- Don't know species Fe++/(Cu+)^2 Act2> show system Diagram speciation of Fe++ on O2(g) vs Fe++ Temperature is 300 C, Pressure is 85.81 bars Working directory: c:programmegwb3.0.1 Basis is: Fe++ X-axis variable (main species) H2O Activity = 10^0 (solvent) S2(g) (swapped for SO4--) Fugacity = 10^-11.5 O2(g) (swapped for O2(aq)) Y-axis variable X-axis plotted from -40 to .01; Y-axis from -30 to 0 I have got problems to swap Fe++/(Cu+)^2 for Fe++. Could anyone tell me how I figure this diagram? Quote Link to comment Share on other sites More sharing options...
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