Mineral: |
amorphous Silica |
Reference: |
KKT12 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Si-OH |
Equation: |
»SiOH + 3 UO2<2+> + 5 H2O ⇔ »SiO-(UO2)3(OH)5 + 6 H<1+> |
LogK: |
-28.34 LogK°I=0 (Conversion to I = 0): -27.58
|
Ionic Strength: |
0.2 mol/L
NaClO4
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
3.0 g/L |
Ligand Concentration Range: |
5E-05 mol/L |
Fit Method: |
Comment: |
data from PC07d; mononuclear monodentate binding of U(VI) with silica sites (model1); original reaction equation given as »SiOH + (UO2)3(OH)5<1+> = »SiO(UO2)3(OH)5 + H<1+>, logK = -12.84; WSOS/DF = 1.55 |
|