Mineral: |
Kaolinite |
Reference: |
AJW98 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Cd<2+>
- cadmium
|
Site Type: |
Cation exchange site |
Equation: |
»(SiK)2 + Cd<2+> ⇔ »(Si2)Cd + 2 K<1+> |
LogK: |
3.15 LogK°I=0 (Conversion to I = 0): 3.28
LogK2.31 nm−2 (SSD-normalized): 2.27
|
Experiment: |
Potentiometric Titration |
Ionic Strength: |
0.005 mol/L
KNO3
|
Temperature: |
343.15 K |
Solid/Liquid Ratio: |
6.38 g/L |
pH Range: |
3.5-9 |
Ligand Concentration Range: |
5E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
relatively sparse ion-exchange sites on the siloxane faces XH (significant adsorption between pH 3 and 5); other logK for 10, 25, 40, 55°C; solid concentration 94m^2/L=6.38g/L |
|