Mineral: |
amorphous Silica |
Reference: |
KKT12 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Si-OH |
Equation: |
»SiOH + UO2<2+> + Si(OH)4<0> ⇔ »SiO-UO2H3SiO4 + 2 H<1+> |
LogK: |
-4.771 LogK°I=0 (Conversion to I = 0): -4.56
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
5.0 g/L |
Ligand Concentration Range: |
4.47E-06 mol/L |
Fit Method: |
FITEQL |
Comment: |
mononuclear monodentate binding of U(VI) with silica sites (model1); original reaction equation given as SiOH + UO2H3SiO4<1+> = SiOUO2H3SiO4 + H<1+>, logK = -2.86; WSOS/DF = 1.17 |
|