Beginners > User manual examples

Phase boundaries calculation (Example 6)

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fotalora:
I'm trying to compute a temperature/pCO2 diagram showing the boundaries between stable phases in alkaline solutions. The attached image shows the kind of plot I want to produce. I've checked the documentation, but up to now, I've only found example 6 on reaction path calculations, that I don't know know how to adapt to my problem since temperature is one of the dimensions of the problem.

I'll appreciate any help in showing how to handle this. Thanks a lot

John Mahoney:
This looks like a good application of PhreePlot, using the MINERALS Option. But I cannot get it to work on short notice.  So I  have contacted David Kinniburgh.  He might be busy also, not sure.  I have other commitments this week.  I might try and deal with it some more this evening. 

In any case I am sure he will need more details, so will I if I get back to this.  Can you provide your starting solution composition?  Were you fixing the pH and if so what value. 

John Mahoney:
David Kinniburgh got it to work. But he had troubles uploading his response. He asked me to send in a reply but I have had similar issues.  I wanted to send this short response to check that I can upload. and let you know we have an answer. 
if this short response works I will send the longer reply latter today. 

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