Transcript Document

Add species to the Basis pane.
Use the Pitzer equations for calculations at high ionic strength.
Mineral saturation states calculated using the Debye-Huckel equation
for activity coefficients. Field evidence suggests Halite and Anhydrite
are in equilibrium with the fluid, in contrast to calculations.
File → Open → Thermo Data...
A thermo dataset utilizing the Pitzer equations, developed for application
to high ionic strength systems, may provide more accurate calculation of
Mineral saturation in this example.
Select thermo_hmw.dat to calculate
activities using the Pitzer equations.
Anhydrite and Halite appear very close to being in
equilibrium, unlike results using the Debye-Huckel equation.