Mineral: |
Ferrihydrite |
Reference: |
MST95 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + UO2<2+> + 3 H2O ⇔ »X-OH2-UO2(OH)3<1-> + 2 H<1+> |
LogK: |
-2.5 LogK°I=0 (Conversion to I = 0): -2.29
LogK2.31 nm−2 (SSD-normalized): -2.00
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
pH Range: |
4-10 |
Fit Method: |
MINEQL |
Comment: |
Adsorption species are from a goethite model by [T83]; binding constants were modified to account for the stronger adsorption by amorphous ferric oxyhydroxide.
A log *β-value for UO2(OH)2 of -9.0 was chosen |
|