Mineral: |
Hematite |
Reference: |
MF99 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
La<3+>
- lanthanum
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + La<3+> + H2O ⇔ »Fe-O-La(OH)<1+> + 2 H<1+> |
LogK: |
-9.0 ± 0.2
LogK°I=0 (Conversion to I = 0): -8.25
LogK2.31 nm−2 (SSD-normalized): -8.06
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Fit Method: |
FITEQL |
Comment: |
surface loading ratio R=[La3+]/[FeOH]total=0.4; only in combination with ºFeOH + La3+ = ºFeO-La2+ + H+ and ºFeOH + La3+ + 2 H2O = ºFeO-La(OH)2 + 3H+ |
|