Hi,
I calculated the gypsum log K values at 25 °C within the Rxn function and obtained Log K = (-4.4433), corresponding to 6 mM / 1.033 g/l of gypsum to reach saturation. However, most reviewed literature suggests a 2 - 2.5 g/l range. Then when I used React, I only reached saturation after titrating 3.55 g/l of gypsum in H2O at 25°C. I'm unsure if there's an error in my calculation or assumptions. Why am I observing gypsum precipitation only after adding 3.55 g/l?
Additionally, I've noticed "smectite reykjanes" precipitation in some of my models, but I couldn't find direct information about this type of smectite in the literature. The TEdit bibliography has no information on this. Do you have a reference for this mineral?
I appreciate your help.
Beth
