| Mineral: |
Gibbsite |
| Reference: |
KD10 |
| SCM Type: |
DDL - Diffuse Double Layer
|
| Ionic Strength: |
0.0 mol/L of
|
| Site Type: |
»Al-OH |
| PZC: |
9.0 |
| pK1: |
7.17 |
pK1°I=0 (Conversion to I = 0): |
7.17 |
pK12.31 nm−2 (normalized): |
7.71 |
| pK2: |
11.18 |
pK2°I=0 (Conversion to I = 0): |
11.18 |
pK22.31 nm−2 (normalized): |
10.64 |
| Site Density in nm-2: |
8.0000 |
| Original Site Density: |
8.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
30.0 |
| pH Range: |
4-10 |
| Temperature in K: |
298.15 |
| Method for Site Density: |
Mean of Different Sources |
| Method for Protolysis: | Best Estimate |
| Fit Method: | FITEQL |
| Comment: |
without consideration of gibbsite dissolution, suspension concentrations up to 30 g/L yielded good fits, weighted averages for pK1 and pK2, confidence level 95%; SSD based on values reported in the literature and by trial fitting of available acid-base titration data, value is consistent with crystaalographic determinations of SSD, PPZC=1/2(pK1+pK2)=9.17 is within the reported range of measured values and close to the average value of 9.0 for reported values |
| |
