Mineral: |
amorphous Silica |
Reference: |
RMCD03 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Th<4+>
- thorium
|
Site Type: |
»Si(s)-OH |
Equation: |
»Si(s)-OH + Th<4+> ⇔ »Si(s)-O-Th<3+> + H<1+> |
LogK: |
1.6 ± 0.1
LogK°I=0 (Conversion to I = 0): 3.21
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Solid/Liquid Ratio: |
0.25 g/L |
pH Range: |
2 - 9 |
Ligand Concentration Range: |
1.15E-12 mol/L |
Fit Method: |
FITEQL |
Comment: |
model 1 (species: »Si(s)-O-Th<3+>, »Si(s)-O-Th(OH)2<1+>, »Si(s)-O-Th(OH)4<1->); Th(IV) hydrolysis constants from Grenthe et al. [42, 43]; total carbonate concentration = 5E−5 M |
|