| Mineral: |
Goethite |
| Reference: |
ES18 |
| SCM Type: |
CDM - (CD-)MUSIC |
| Ligand: |
Sb(OH)6<1->
- hydroxoantimonate(V)
|
| Site Type: |
»Fe-singly |
| Equation: |
2 »Fe-OH<0.5-> + Sb(OH)6<1-> ⇔ »Fe2-O2-Sb(OH)4<2-> + 2 H2O |
| LogK: |
5.17 LogK°I=0 (Conversion to I = 0): 5.28
LogK2.31 nm−2 (SSD-normalized): 5.32
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.1 mol/L
KNO3
|
| Temperature: |
294.0 K |
| Solid/Liquid Ratio: |
5.0 g/L |
| pH Range: |
3.5-10 |
| Ligand Concentration Range: |
5E-4 mol/L |
| Fit Method: |
FITEQL |
| Comment: |
bidentate model; Log Kint value for bidentate surface complex was computed using Kint = a SA ns KFITEQL and values from Table 1, where a is the suspension density (kg/L), SA is the specific surface (m²/kg), ns is the site density (mol/m²), and KFITEQL is the Kint value optimized in FITEQL. The transformation relates the concentration-dependent Kint values for bidentate complexes generated by FITEQL to the mole-fraction based values [TE02]. |
| |
