Mineral: |
Maghemite |
Reference: |
YSHX18 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Fe<3+>
- iron(III)
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Fe<3+> + H2O ⇔ »Fe-O-Fe(OH)<1+> + 2 H<1+> |
LogK: |
0.254 LogK°I=0 (Conversion to I = 0): 1.00
LogK2.31 nm−2 (SSD-normalized): 1.19
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaNO3
|
Solid/Liquid Ratio: |
1.0 g/L |
pH Range: |
2.3-3.4 |
Ligand Concentration Range: |
2.224E-4 mol/L |
Fit Method: |
FITEQL |
Comment: |
adsorption data for the 1:1 ratio between surface sites and total ferric ions (1 Fe(III)aq site<-1>) were modeled
also surface precipitation model: surface precipitation model extends the surface
complexation model by taking into account the formation of a dummy surface phase, Fe(OH)3(s) logK = -8.510. |
|