Mineral: |
Kaolinite |
Reference: |
R82a |
SCM Type: |
TL - Triple Layer |
Ligand: |
Na<1+>
- sodium
|
Site Type: |
»Al-OH |
Equation: |
»Al-OH + Na<1+> ⇔ »Al-O-Na + H<1+> |
LogK: |
-7.4 LogK°I=0 (Conversion to I = 0): -7.40
LogK2.31 nm−2 (SSD-normalized): -8.79
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.0 mol/L
NaNO3
|
pH Range: |
4-9 |
Ligand Concentration Range: |
0.0001-0.1 mol/L |
Fit Method: |
graphic extrapolation |
Comment: |
double extrapolation to ionic strength 0; also successfully modeling with pK2=9.1: logK=-7.5 |
|