Mineral: |
Kaolinite |
Reference: |
EHL14 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Nb(OH)5<0>
- niobium(V) hydroxyde
|
Site Type: |
»X-OH |
Equation: |
»X-OH + Nb(OH)5<0> + H2O ⇔ »X-O-Nb(OH)6<2-> + 2 H<1+> |
LogK: |
-6.76 LogK°I=0 (Conversion to I = 0): -6.97
LogK2.31 nm−2 (SSD-normalized): -6.95
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Solid/Liquid Ratio: |
1.0 g/L |
pH Range: |
4 - 11 |
Ligand Concentration Range: |
6.6E-9 mol/L |
Fit Method: |
PHREEQC |
Comment: |
0.1 M NaClO4 and Ca(ClO4)2 solutions; original equation in the study: »X-OH + Nb(OH)7<2-> = »X-O-Nb(OH)6<2-> + H2O with logK = 7.2, thermodynamic reactions and their equilibrium constants taken from the ThermoChimie Version 7b database |
|