[Using SpecE8]

Hi everyone,

 

I am very new to SpecE8, and I am trying to predict the speciation given a defined environment. You can see my parameters in the attached screenshot. My O2(g) is zero because I have an anoxic environment, but these input seem to not return any speciation, would anyone take a look what was wrong with my set up?

 

Thanks!

 

[Adding mopungite to database]

Hi everyone!

I would like to know if anyone had experience adding the mineral, mopungite {Na[Sb(OH)6]} into any of the database. I went through all the pre-set database GWB has and was not able to locate this mineral. If anyone wrote mopungite into a database it would be a great help if the details can be shared.

Thank you all!

[Can I suppress a specific species in pH-Eh diagram?]

Hi All!

I am trying to make a pH-Eh diagram for the species Sb(OH)6-, although the species SbO2 appeared in the diagram as well (attached is the diagram I made). I was wondering is there any way to suppress SbO2?

 

Thank you!!

[Where can I find element Antimony (Sb) in Act2 for ph-Eh diagram?]

Hi Jia,

Thank you so much for your kind explanation, I was able to complete the copy and now I can proceed to make pH-Eh diagram. Thank you!

[Where can I find element Antimony (Sb) in Act2 for ph-Eh diagram?]

Hi Jia, thank you so much for your reply. After switching the dataset I was able to look for Sb species. I also checked the old thread you provided and it helped a lot! However I am encountering the same issue that was in the old thread where "Reaction for H2(g) is missing; can not plot water limit" message pop up when I use thermo.minteq dataset to create Eh-pH graph. I tried to follow the solution in the original thread which is to add H2 to a copy of the minteq database. I tried couple of times but it was not working for me, would it be possible for you to describe how to add H2 to the database?

 

Thank you so much!

[Where can I find element Antimony (Sb) in Act2 for ph-Eh diagram?]

Hey all,

I am looking to create a pH-Eh diagram for the element Antimony (Sb), but it seems like I could not find this element in Act2, I wonder if I need subscription to 'unlock' this element? 

If anyone can help with this it will be much appreciated.

 

Thanks!