Mineral: |
Ferrihydrite |
Reference: |
DH03 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
AsO4<3->
- arsenate
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + AsO4<3-> + 2 H<1+> ⇔ »FeHAsO4<1-> + H2O |
LogK: |
24.43 LogK°I=0 (Conversion to I = 0): 24.43
LogK2.31 nm−2 (SSD-normalized): 25.37
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
NaClO4
|
Temperature: |
296.15 K |
Solid/Liquid Ratio: |
0.03 g/L |
pH Range: |
3.5-10.5 |
Ligand Concentration Range: |
1E-5 - 1E-4 mol/L |
Fit Method: |
FITEQL |
Comment: |
As/Fe ratio 3E-2 - 3E-1; experiments in 0.01M NaClO4; also sorption isotherm at pH=4+-0.1; temperature 23+-0.4°C |
|