Mineral: |
Birnessite |
Reference: |
TBM04 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Zn<2+>
- zinc
|
Site Type: |
»X-OH |
Equation: |
»X-OH + Zn<2+> + H2O ⇔ »X-O-Zn(OH) + 2 H<1+> |
LogK: |
-4.4 ± 1.2
LogK°I=0 (Conversion to I = 0): -4.40
LogK2.31 nm−2 (SSD-normalized): -1.68
|
Experiment: |
Best Estimate |
Ionic Strength: |
0.0 mol/L
|
Temperature: |
298.15 K |
Fit Method: |
FITEQL |
Comment: |
synthetic hydrous Mn oxide; pKa2 and alpha values and published cation sorption data were used subsequently to determine equilibrium surface complexation constants; error (1.2) at the 95 % confidence level |
|