Mineral: |
Montmorillonite |
Reference: |
SFBMB22 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»X(s)-OH |
Equation: |
»X(s)-OH + UO2<2+> + H2O ⇔ »X(s)-O-UO2(OH) + 2 H<1+> |
LogK: |
-4.49 ± 0.7
LogK°I=0 (Conversion to I = 0): -4.49
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
|
Temperature: |
296.15 K |
Solid/Liquid Ratio: |
4.0 g/L |
pH Range: |
4 - 10 |
Ligand Concentration Range: |
1E-6 mol/L |
Fit Method: |
PHREEQC |
Comment: |
Fit Method: PHREEQC coupled with UCODE 2014;
cation exchange reactions [BB97b]:
2Na+-clay + Ca2+ = Ca2+-clay + 2Na+, log K = 0.61;
2Na+-clay + UO22+ = UO22+-clay + 2Na+, log K = 0.15 |
|