Mineral: |
Hematite |
Reference: |
MF99 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
La<3+>
- lanthanum
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + La<3+> ⇔ »Fe-O-La<2+> + H<1+> |
LogK: |
-0.8 ± 0.3
LogK°I=0 (Conversion to I = 0): 0.06
LogK2.31 nm−2 (SSD-normalized): 0.14
|
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+ + H2O = ºFeO-La(OH)+ + 2H+ and ºFeOH + La3+ + 2 H2O = ºFeO-La(OH)2 + 3H+ |
|