Geochemist's Workbench Support Forum

# Charis Wong

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1. ## Mixing of multiple fluids

Hi Brian, Thank you very much for explaining! Now I understand the difference of the two. Have a lovely day. Cheers, Charis
2. ## Mixing of multiple fluids

Hi all, I have got a simple question regarding to mixing of multiple fluids. I’m sure that I must have missed something, so I just wanted to check. I have the composition of three end-member solutions (Solution 1, 2, 3) that would be mixed to produce composition of Solution 4. Say 20%, 30% and 50% of Solution 4 is from Solution 1, 2, 3 respectively. I have the composition of all Solution 1, 2, 3, 4. Essentially I would like to check the mixing fraction through React (at which I have calculated manually) to see whether it gives me a good match for the solution 4 composition. I would like to run this mixing reaction through the REACT model to get the final concentration of Solution 4 with the known composition and mixing fraction of Solution1-3. But from my understanding, is it correct that I can only mix/react one solution with another one at a time on REACT? And of course if I run reaction of solution 1 and 2, pick up>reactant>fluid to react with solution 3 will not give the answer that I wanted since it’s a different mechanism. I have tried GSS where I can mix all three solution all at once. But when I did a test run of only mixing two solutions on GSS, it gives different results from reacting two solutions on REACT. So two questions: What is the best way to do fluid mixing of more than two solutions that accounts for different mixing fraction? What are the difference between GSS mixing function and React? i.e. say if I’m to mix two solutions together. Thank you very much for your help. Have a lovely day. Cheers, Charis
3. ## Minor issues on Act2 (to upload scatter data)

Oh, I just figured out why. So essentially I have to open a new column for "Eh" and copy and paste my Eh (SO4--/HS-) values over. Then Act2 will read this column. Thanks anyway!
4. ## Minor issues on Act2 (to upload scatter data)

Hi there, I've created a Eh-pH diagram for Fe species and hoping to upload some of my data onto it. But i had trouble uploading the data. I simply went to File>Open>Scatter data>[my GSS file] Then an error window popped up saying "scat: Can't plot scatter data; doesnt contain: Eh (volts)" On my GSS spread sheet, i have first column as sample ID, second column as Eh (SO4--/HS-) and third column as pH. So I couldnt quite figure out why it said the data doesnt contain Eh. That will be great anyone can advise what is the likely issue i.e. if i have formatted my data incorrectly on the spreadsheet? Thanks a lot Cheers, Charis
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