John Washington
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Posts posted by John Washington
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Hello,
I was wondering if you could answer my question on plotting in ACT2. I recently plotted log Al3+ vs pH to show the stability field for gibbsite. Then I added to the default thermodynamic dataset the equilibrium constants reported by Kirk Nordstrom for 'microcrystalline gibbsite' and 'amorphous Al(OH)3'. What I want to do is show all three mineral stability fields, each contained in the more stable field of the next. I am just returning to GWB after about 10 years; I did this with an earlier version of GWB I think but I don't see how to do this now. For the time being, I copy-pasted graphs in PowerPoint to achieve my end primitively -- I am pasting this below to show you what I want.
Is there a more elegant way to generate this graph in GWB, showing all three solid phases, gibbsite, microcrystalline gibbsite, and amorphous Al(OH)3?
Thanks very much for any advice,
John
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Hi Jia,
You recently replied to my query to you, thank you.
You suggested I try submitting a stream on the forum. I tried to start it, but did not know how to proceed -- I looked for instructions on using the forum, but did not find any. Here is the stream I tried to start -- I don't know what to do next. Any suggestions are appreciated.
Thanks -- John
Speciation problem with multiple minerals in phase diagram using Act2
in Rxn, Act2 and Tact2
Posted
Thank you Brian. I must have used PowerPoint to generate my figure 10 years ago as well then. Time fogs the memory. --John