Mineral: |
Goethite |
Reference: |
DW14 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Al<3+>
- aluminum
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH<0.5-> + Al<3+> + H2O ⇔ (»Fe-OH)-Al(OH)<1.5+> + H<1+> |
LogK: |
7.0 LogK°I=0 (Conversion to I = 0): 7.86
LogK2.31 nm−2 (SSD-normalized): 7.94
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Temperature: |
298.0 K |
Solid/Liquid Ratio: |
11.0 g/L |
pH Range: |
3-6 |
Ligand Concentration Range: |
0.00032 mol/L |
Fit Method: |
PHREEQC |
Comment: |
log K estimated from [LSS90] by converting their two-pK (protonation-deprotonation) model to one-pK model; only valid in combination with other surface reactions and constants (see article) |
|