| Mineral: |
Montmorillonite |
| Reference: |
SIT21 |
| SCM Type: |
NE - Non-electrostatic |
| Ligand: |
Ni<2+>
- nickel
|
| Site Type: |
»X(s)-OH |
| Equation: |
»X(s)-OH + Ni<2+> + 2 H2O ⇔ »X(s)-O-Ni(OH)2<1-> + 3 H<1+> |
| LogK: |
-18.6 LogK°I=0 (Conversion to I = 0): -18.60
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.0 mol/L
|
| Solid/Liquid Ratio: |
8.8 g/L |
| pH Range: |
6.4 - 11.8 |
| Ligand Concentration Range: |
7.7E-8 mol/L |
| Fit Method: |
PHREEQC |
| Comment: |
cation exchange and surface complexation combined
(2XNa + Ni2+ = X2Ni + 2Na+ with log K = 0.5 (I ≤ 0.1 M), log K = 1.0 (I = 0.5 M)) |
| |