| Mineral: |
Illite |
| Reference: |
EPH13 |
| SCM Type: |
NE - Non-electrostatic |
| Ligand: |
Nb(OH)5<0>
- niobium(V) hydroxyde
|
| Site Type: |
»X(w)-OH |
| Equation: |
»X(w)-OH + Nb(OH)5<0> + H2O ⇔ »X(w)-O-Nb(OH)6<2-> + 2 H<1+> |
| LogK: |
-6.96
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
ground water
|
| Temperature: |
298.15 K |
| Solid/Liquid Ratio: |
1.0 g/L |
| pH Range: |
6 - 11 |
| Ligand Concentration Range: |
1E-8 mol/L |
| Fit Method: |
PHREEQC |
| Comment: |
The best fit from OLSR was applied to other waters (Figures Nb-10-12). However for the other waters the fitting did not succeed. Since the speciation in other waters is similar and the modeling results are the same as for OLSR, the other modeling results are not presented.
SSA from [PBB99], SSD and pK values from [BB09a]
Original equation in the study: »X(w)-OH + Nb(OH)7<2-> = »X(w)-O-Nb(OH)6<2-> + H2O with logK = 7.0, thermodynamic reactions and their equilibrium constants taken from the ThermoChimie Version 7b database |
| |
