Mineral: |
Ferrihydrite |
Reference: |
SWM03 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Pb<2+>
- lead
|
Site Type: |
»Fe(w)-OH |
Equation: |
»Fe(w)-OH + Pb<2+> ⇔ »Fe(w)-O-Pb<1+> + H<1+> |
LogK: |
1.99 LogK°I=0 (Conversion to I = 0): 1.99
LogK2.31 nm−2 (SSD-normalized): 3.72
|
Experiment: |
Sorption Isotherms |
Ionic Strength: |
0.0 mol/L
|
Temperature: |
298.15 K |
pH Range: |
3.57 - 3.60 |
Fit Method: |
FITEQL |
Comment: |
3-site model (third higher affinity site); Pb conc. of 0.584 - 39.0 µmol/kg, Fe concentration of 9.83 mmol/kg; Isotherm B; no convergence of this value so it was fixed to achieve consistency between results |
|