marcoscascas

Thanks so much Melika This time I attached my script file like you said, thanks. La3 Co3 water new.ac2 I managed to add those reactions and a couple more to my data set. I got the graph looking a lot like the reference one. Although, one other question. I noticed with my graph when I right click my plot to get to 'view panel' and turn on and off the 'mineral' function, my graph will show me the lanthanum carbonates that precipitates out of solution ( La2(CO3)3 and La(OH)3 ) when mineral is selected but when i deselect mineral it will show me the lanthanum species that will remain in solution ( LaCO3+ and La(CO3)2- ). How do I interpret this information? Wouldnt i expect those soluble lanthanum species ( LaCO3+ and La(CO3)2- ) to be present in a solution at the same time as those lanthanum species that precipitate ( La2(CO3)3 and La(OH)3 ) out of the solution??? I was thinking my graph would show some of the Lanthanum carbonate soluble species along with the precipitants in the same graph. I hope this makes a little bit of sense. Thank you very much, Marco

Hello, Im really new to this. I am basically trying to replicate this Eh pH diagram as a learning process: But i cant figure out how. This is my graph i made with GWB student And the basis - What do the horizontal blue dotted lines represent on my graph? - Why does my GWB graph show the water limits? when i try to turn on the water limits i get a error: reaction for H2(g) is missing; can not plot water limit. I am using the thermo_minteq data set for all the lanthanides. - Why is my lanthanum free ion off on the pH so much? Am i not correctly inputting the carbonate. I added CO3-- in the 'in the presence of' section, is this correct? Or should i make it swap basis entry with La+++ as the diagram species? - i guess the main thing is im not sure how to add other ligands such as carbonates, hydroxides, fluorides, etc. When i try to add them in they dont seem to work properly or resemble any of the other graphs with the same mineral system. Thank you so much for any help, Thanks