Mineral: |
Kaolinite |
Reference: |
HZ94 |
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: |
-4.13 LogK°I=0 (Conversion to I = 0): -3.93
LogK2.31 nm−2 (SSD-normalized): -4.54
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.025 mol/L
NaNO3
|
Temperature: |
293.15 K |
pH Range: |
4-10 |
Fit Method: |
MINSQ |
Comment: |
3.6µmol/L Cd2+, seems to be a combination of SCM/ion exchange model; ion exchange 2=XNa + Cd2+ = (=X)2Cd + 2Na+: logK=4.94; without assumption of ion exchange: logK=4.88 |
|