1. K d, Freundlich, and Langmuir isotherms

2. File → New → Sorbing Surfaces → Kd Pull aqueous species from a thermo dataset Enter a unique identifier for the sorbing surface.

3. Right click → add Basis… → Ni ++ Choose a basis, redox, or aqueous species from the list Supply a K d then click Apply Ni ++ properties taken from thermo dataset automatically

4. File → New → Sorbing Surfaces → Freundlich

5. Basis… → Am +++ Supply a K f and n f then click Apply Am +++ properties taken from thermo dataset automatically Right click → add

6. File → New → Sorbing Surfaces → Langmuir

7. Langmuir datasets have one uncomplexed site, >L: You can edit its name if you’d like to consider multiple Langmuir datasets simultaneously.

8. Basis… → Ag + Supply a log K and temperature derivative, then click Apply Ag + properties taken from thermo dataset automatically Right click → add

10. Basis… → Ni ++ Choose a basis, redox, or aqueous species from the list

11. Supply a K d then click Apply Ni ++ properties taken from thermo dataset automatically