| Mineral: |
Kaolinite |
| Reference: |
HZBRM97 |
| SCM Type: |
TL - Triple Layer
(C1: 1.0 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
|
| Site Type: |
»Al-OH |
| PZC: |
5.0 |
| pK1: |
7.89 |
|
pK12.31 nm−2 (normalized): |
7.27 |
| pK2: |
9.05 |
|
pK22.31 nm−2 (normalized): |
9.67 |
| Site Density in nm-2: |
0.5500 |
| Original Site Density: |
0.55 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
0.0 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Potentiometric Titration |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
pK for edge AlOH groups from [HS73] (there probable for DLM!]; pK for edge SiOH groups from [XW92]; SSD from [WZ88] (edge surface area 8.2 sites/nm^2) with 1 SiOH and 2 AlOH sites per cell: assuming 10% of edge surface area to total surface area; C2 generally assumed from [D78], [Y74] and others, C1 selection from literature data (for instance [D78] for the system TiO2-KNO3; [HREL91] 0.8-1.2 F/m^2); site concentration 5.46E-4 mol/L; PZC: point of zero salt effect (no effect of ionic strength on adsorption) |
| |
