Mineral: |
Kaolinite |
Reference: |
SKLL09 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Cd<2+>
- cadmium
|
Site Type: |
»X-OH |
Equation: |
»X-OH + Cd<2+> ⇔ »X-O-Cd<1+> + H<1+> |
LogK: |
-5.8 LogK°I=0 (Conversion to I = 0): -5.67
LogK2.31 nm−2 (SSD-normalized): -5.99
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.01 mol/L
NaNO3
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
2.0 g/L |
pH Range: |
3 - 10 |
Ligand Concentration Range: |
1E-4 - 1E-6 mol/L |
Fit Method: |
FITEQL |
Comment: |
Monodentate variable charge + ion exchange site:
2X(Na) + Cd<2+> = X2(Cd) + 2Na<1+> with log K = 4.2;
X(Na) + H<1+> = X(H) + Na<1+> with log K = 2.5;
Supplementary Material, Table S5 |
|