| Mineral: |
Gibbsite |
| Reference: |
RPS02 |
| SCM Type: |
TL - Triple Layer
(C1: 7.7 F/m2, C2: 1.85 F/m2) |
| Ionic Strength: |
0.0 mol/L of
NaCl
|
| Site Type: |
»Al-OH |
| PZC: |
|
| pK1: |
10.0 |
pK1°I=0 (Conversion to I = 0): |
10.00 |
pK12.31 nm−2 (normalized): |
10.58 |
| pK2: |
|
pK2°I=0 (Conversion to I = 0): |
|
|
| Site Density in nm-2: |
8.8000 |
| Original Site Density: |
8.8 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
2.0 |
| pH Range: |
3-11 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Geometrical Calculation |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | FITEQL |
| Comment: |
calculation with Specific Surface Area: 91 m2/g; On the particle edges, one can find both doubly and singly coordinatedOHgroups (denoted >AlOH) in equal amounts. The mean value for the density of each group on the edge planes is 8.8 nm-2. The densities were calculated using data from Saalfeld and Wedde(5) |
| |
