Mineral: |
Alumina |
Reference: |
CJ99 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Cr<3+>
- chromium(III)
|
Site Type: |
»Al-OH |
Equation: |
»Al-OH + Cr<3+> ⇔ »Al-O-Cr<2+> + H<1+> |
LogK: |
1.19
LogK2.31 nm−2 (SSD-normalized): -0.20
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
KNO3
|
Fit Method: |
Comment: |
only in combination with ºAlOH + Cr3+ + H2O = ºAlO-CrOH+ + 2H+; ionic strength of background elektrolyte solution 1E-2...1E-4 M KNO3; moderate dependence on ionic strength (decreased concentration depresses sorption of Cr(III)) |
|