Cansu Floyd

I have seen publications using oxalate to model speciation (e.g. file:///C:/Users/Cansu%20Floyd/Downloads/Biotransformation_of_lanthanum_by_Aspergillus_nige.pdf) using Act2 module. I want oxalic acid, oxalate, Li-oxalate, Mg-oxalate, and Li-carbonate in my models. I could not see any of them in the dropdown species list in the default thermodynamic database. Could you walk me through how to find or add them to databases? Thanks in advance! Cansu Floyd