Mineral: |
Kaolinite |
Reference: |
SKLL09 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Cd<2+>
- cadmium
|
Site Type: |
»X-OH |
Equation: |
2 »X-OH + Cd<2+> ⇔ (»X-O)2-Cd + 2 H<1+> |
LogK: |
-9.9
LogK2.31 nm−2 (SSD-normalized): -10.28
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
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: |
Median stability constant;
0.002 - 0.1 M NaNO3;
Bidentate variable charge + ion exchange site:
2X(Na) + Cd<2+> = X2(Cd) + 2Na<1+> with log K = 4.3;
X(Na) + H<1+> = X(H) + Na<1+> with log K = 2.9;
Supplementary Material, Table S3 |
|