Mineral: |
Ferrihydrite |
Reference: |
BL81a |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Cd<2+>
- cadmium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Cd<2+> ⇔ »Fe-O-Cd<1+> + H<1+> |
LogK: |
-3.4 LogK°I=0 (Conversion to I = 0): -3.08
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Ligand Concentration Range: |
1E-7 mol/L |
Fit Method: |
graphic extrapolation |
Comment: |
logK=-4.1 (for [Cd]=5E-5M); data from [SHJ70] but there only pyrolysite and alumina; no site density and surface protolysis data |
|