Mineral: |
α-MnO2 |
Reference: |
KSCKT18 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Mn-OH |
Equation: |
»Mn-OH + UO2<2+> + 3 H2O ⇔ »Mn-O-UO2(OH)3<2-> + 4 H<1+> |
LogK: |
-37.05 LogK°I=0 (Conversion to I = 0): -37.05
LogK2.31 nm−2 (SSD-normalized): -33.75
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.01 mol/L
NaClO4
|
Solid/Liquid Ratio: |
1.0 g/L |
pH Range: |
2 - 11 |
Ligand Concentration Range: |
8.2E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
Anaerobic system;
original equation in the study: »Mn-OH + UO2(OH)3<1-> = »Mn-O-UO2(OH)3<2-> + H<1+> with log K = -16.8 (UO2<2+> + 3H2O ⇌ UO2(OH)3<1−> + 3H<1+>, log K = -20.25 from a thermodynamic database published by Nuclear Energy Agency [GFFGN03]) |
|