Mineral: |
Quartz |
Reference: |
DW14 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Si-OH |
Equation: |
2 »Si-OH + UO2<2+> + CO3<2-> ⇔ (»Si-OH)2-UO2CO3 |
LogK: |
16.94 LogK°I=0 (Conversion to I = 0): 17.30
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.01 mol/L
NaNO3
|
Temperature: |
295.5 K |
Solid/Liquid Ratio: |
100.0 g/L |
pH Range: |
3-9.5 |
Ligand Concentration Range: |
1E-6 mol/L |
Fit Method: |
PHREEQC |
Comment: |
original reaction equation in the study: 2 »Si-OH + UO2<2+> + H2CO3 = (»Si-OH)2-UO2CO3 + 2 H<1+> with logK = 0.26, formation constant in aqueous solution: H2CO3 = CO3<2-> + 2H<1+> logK = -16.68 [SM96a] |
|