| Mineral: |
Kaolinite |
| Reference: |
HW05b |
| SCM Type: |
DDL - Diffuse Double Layer
|
| Ionic Strength: |
0.0 mol/L of
NaNO3
|
| Site Type: |
»X(s)-OH |
| PZC: |
4.9 |
| pK1: |
4.6 |
pK1°I=0 (Conversion to I = 0): |
4.60 |
pK12.31 nm−2 (normalized): |
1.38 |
| pK2: |
5.4 |
pK2°I=0 (Conversion to I = 0): |
5.40 |
pK22.31 nm−2 (normalized): |
8.62 |
| Site Density in nm-2: |
0.0014 |
| Original Site Density: |
0.0014 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
20.0 |
| pH Range: |
|
| Temperature in K: |
298.15 |
| Method for Site Density: |
Mean of Different Sources |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
surface charge density 1.99 µmol/m^2; also ion exchange >XNa + H+ =XH + Na+ logK=-1.1; 0.16, 0.07, and 0.06M NaNO3 (0.1, 0.01M NaNO3 and deionized water plus 0.06M buffer); >X(s)OH: selective site, >XOH: nonselective site; to get the best fits, it is suggested to reduce the number of selective sites 1000-fold lower than nonselective ones for TBT adsorprption instead of 100-fold lower, which is usually done for modeling adsorption |
| |
