I was planning to setup a system to see what phases form at equilibrium when Fly Ash reacts with water with the database that I had sent you. The system consists of Fly Ash minerals (SiO2, Lime, Mullite, Hematite, Anhydrite). The aim of the system was to model the the interaction of fly ash minerals with H2O at a pH 10-14. I was particularly interested in the formation of phases such as Ettringite and C-S-H at equilibrium.
As I wasn't able to move forward without the input of O2 conc, I had to use O2(aq) in the system (I do not actually need O2). If I use the mineral as Kinetic minerals, REACT prompts for the individual elemental concentration of the mineral to be given as an input in the basis pane (for. e.g. If I use Anhydride as a kinetic mineral, I get an error asking me to include SO4 2- in the basis pane). If I include the concentration of SO4 2- ions in the basis pane, I do not understand the need to Anhydrite as a kinetic mineral in the first place.
I went through the Reaction modeling guide and I understand that equilibrium is first achieved by reacting all the phases in the pane and then, this is reacted with the mineral in the reactants pane (kinetic minerals) to produce the final output. Please correct me if I'm wrong. I'm trying to draft a model that works to study my system. Please let me know if you need more information on this.
Thanks,
Pavan Akula