Mineral: |
Ferrihydrite |
Reference: |
BL81a |
SCM Type: |
TL - Triple Layer |
Ligand: |
Cd<2+>
- cadmium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Cd<2+> + H2O ⇔ »Fe-O-Cd(OH) + 2 H<1+> |
LogK: |
-10.5 LogK°I=0 (Conversion to I = 0): -10.29
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Ligand Concentration Range: |
1E-7 mol/L |
Fit Method: |
graphic extrapolation |
Comment: |
logK=-11.2 for [Cd]=5E-5M; based on [DJL78] but there only amorphous silica and alumina; no site density and surface protolysis data |
|