Mineral: |
amorphous Silica |
Reference: |
DMB98 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Si-OH |
Equation: |
»Si-OH + UO2(OH)<1+> ⇔ »Si-O-UO2(OH)+ H<1+> |
LogK: |
-7.6 ± 0.2
LogK°I=0 (Conversion to I = 0): -7.28
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
pH Range: |
3-8 |
Ligand Concentration Range: |
1E-6 - 1E-9 mol/L |
Fit Method: |
KINDIS |
Comment: |
conversion into »Si-OH + UO2<2+> + H2O = »Si-O-UO2(OH)+ 2H<1+>: logK=12.58 with UO2<2+> + H2O - H<1+> = UO2OH<1+> logK=-4.98 |
|