| Mineral: |
Montmorillonite |
| Reference: |
PKZZ11 |
| SCM Type: |
NE - Non-electrostatic
|
| Ionic Strength: |
|
| Site Type: |
»Al(w)-OH |
| PZC: |
|
| pK1: |
8.33 |
|
pK12.31 nm−2 (normalized): |
7.94 |
| pK2: |
9.73 |
|
pK22.31 nm−2 (normalized): |
10.12 |
| Site Density in nm-2: |
0.9400 |
| Original Site Density: |
0.94 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
|
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Literature |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
assumed that the edge sites of montmorillonite are the locations for reactive surface sites. These sites represent 10% of the total available surface area [TPB98a]. Therefore, the site density was decreased to 0.23 sites per nm² when calculating the aluminol and silanol site concentrations; assumed Al:Si ratio of 0.83 [WZ88]; protolysis constants from [T95] |
| |
