Qianwei

Hi Katelyn, Thank you for your help and now I got another problem. I applied the log activity of species in SpecE8 in the Act2 program, but the results does not match at all. According to the results of SpecE8, the only saturation mineral is La2(CO3)3-8H2O while in the pH-Eh diagram, there is no mineral precipitation. Could you help me figure out what the problem is? Attached is my results. Thank you very much! Regards, Qianwei Act2.ac2 specE8.sp8

Hi Katelyn, Thank you for your help and attached is my result. Regards, Qianwei Act results.ac2 SpecE8 results.sp8

Hi Katelyn, Many thanks for your reply. And I tried to use another thermo dataset in with Act2 and I found the La+++ I wanted, but I got another problem when I tried to draw the pH-Eh diagram. There is no minerals's state in the diagram and it always show the La++ without La+++ which is more stable. Could you help me with this? I used the SpecE8 for the activity calculation of La+++ ion but the results always come to be the activity of La++. Thanks again. Regards, Qianwei

Hi there, I am just a new user of GWB student version and I wonder how could I find the La+++ in the species list. Thank you very much! Qianwei