Mineral: |
Hematite |
Reference: |
MDF97 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Yb<3+>
- ytterbium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Yb<3+> + H2O ⇔ »Fe-O-Yb(OH)<1+> + 2 H<1+> |
LogK: |
-7.7 LogK°I=0 (Conversion to I = 0): -6.95
LogK2.31 nm−2 (SSD-normalized): -6.76
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Temperature: |
298.15 K |
pH Range: |
4-8 |
Ligand Concentration Range: |
2E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
high surface loading [Yb<3+>]/[SOH] = 0.4; in the case of high surface loading, hematite sorption curves do not vary after an oxide-ytterbium contact time equal to one hour |
|