Mineral: |
Hematite |
Reference: |
QHS96 |
SCM Type: |
TL - Triple Layer |
Ligand: |
Th<4+>
- thorium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Th<4+> ⇔ »Fe-O-Th<3+> + H<1+> |
LogK: |
21.2 LogK°I=0 (Conversion to I = 0): 22.81
LogK2.31 nm−2 (SSD-normalized): 22.14
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Fit Method: |
HYDRAQL |
Comment: |
insensitivity of fractional Th sorption to changes in ionic strength -> indicates formation of inner-sphere surface complexes; isotherm for Th(IV) sorption on hematite shows Langmuirian behavior; Th sorption was irreversible within the time frame of the experiment (95 h) |
|