Mineral: |
Hematite |
Reference: |
C96 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Th<4+>
- thorium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Th<4+> + 4 H2O ⇔ »Fe-O-Th(OH)4<1-> + 5 H<1+> |
LogK: |
-9.6 ± 0.1
LogK°I=0 (Conversion to I = 0): -9.60
LogK2.31 nm−2 (SSD-normalized): -4.16
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
NaCl
|
Solid/Liquid Ratio: |
0.05 g/L |
pH Range: |
2-10 |
Ligand Concentration Range: |
2.5E-10 mol/L |
Fit Method: |
FITEQL |
Comment: |
I = 0.01 and 0.1 M; constant is calculated by applying the SIT for I = 0; set of hydrolysis constants for Th from [R87]; citation in [CMFGG98]; carbonate concentration 5E-5M; mean value of logK; other logK (apparent/intrinsic): 10.0/9.5 (0.01M), 10.8/9.6 (0.1M) |
|