Mineral: |
Magnetite |
Reference: |
MGDRD06 |
SCM Type: |
TL - Triple Layer |
Ligand: |
SeO4<2->
- selenate
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + SeO4<2-> + H<1+> ⇔ »Fe-OH2<1+>-SeO4<2-> |
LogK: |
7.1 ± 0.7
LogK°I=0 (Conversion to I = 0): 7.64
LogK2.31 nm−2 (SSD-normalized): 8.04
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
5.0 g/L |
pH Range: |
2-12 |
Ligand Concentration Range: |
2E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
Selenium(VI); original equation in the study: »Fe-OH + HSeO4<1-> = »Fe-OH2<1+> - SeO4<2-> with logK = 5.3; formation constant logK = -1.80 for the reaction HSeO4<1-> = SeO4<2-> + H<1+> [Grenthe et al. 1992] |
|