Mineral: |
Bentonite |
Reference: |
HM10 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Eu<3+>
- europium(III)
|
Site Type: |
»Si-OH |
Equation: |
»SiOH + Eu<3+> + 2 H2O ⇔ »SiO-Eu(OH)2 + 3 H<1+> |
LogK: |
-16.5 LogK°I=0 (Conversion to I = 0): -15.98
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.053 mol/L
ground water
|
Temperature: |
293.15 K |
Solid/Liquid Ratio: |
4.0 g/L |
pH Range: |
2 - 12 |
Ligand Concentration Range: |
1E-5 mol/L |
Fit Method: |
Comment: |
also ion exchange reactions given in the study: 3»XNa + Eu<3+> = »X3Eu + 3Na with logK = 6.5 and 2»XNa + Eu<3+> + H2O = »X2EuOH + H<1+> + 2Na<1+> with logK = -2.0 |
|