Mineral: |
Alumina |
Reference: |
H17 |
SCM Type: |
NE - Non-electrostatic
|
Ionic Strength: |
0.1 mol/L of
NaClO4
|
Site Type: |
»Al(s)-OH |
PZC: |
8.5 |
pK1: |
6.9 |
pK1°I=0 (Conversion to I = 0): |
6.79 |
pK12.31 nm−2 (normalized): |
4.29 |
pK2: |
9.7 |
pK2°I=0 (Conversion to I = 0): |
9.59 |
pK22.31 nm−2 (normalized): |
12.31 |
Site Density in nm-2: |
0.0057 |
Original Site Density: |
0.0095 µmol / m² surface
|
Solid/Liquid Ratio in g/L: |
10.0 |
pH Range: |
3-11 |
Temperature in K: |
294.15 |
Method for Site Density: |
Potentiometric Titration |
Method for Protolysis: | Potentiometric Titration |
Fit Method: | CHESS |
Comment: |
Alumina sites were determined by fast titration under anoxic (CO2-free as well) conditions at 21°C, using 10 g/l suspensions, at 0.01 M and 0.1 M NaClO4. PZC was 8.5. Titrations were done in the 3-11 pH range. |
|