| Mineral: |
amorphous Al(OH)₃ |
| Reference: |
ML93b |
| SCM Type: |
TL - Triple Layer
(C1: 1.25 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
0.04 mol/L of
KNO3
|
| Site Type: |
»Al-OH |
| PZC: |
|
| pK1: |
8.0 |
pK1°I=0 (Conversion to I = 0): |
7.92 |
pK12.31 nm−2 (normalized): |
8.54 |
| pK2: |
10.2 |
pK2°I=0 (Conversion to I = 0): |
10.12 |
pK22.31 nm−2 (normalized): |
9.66 |
| Site Density in nm-2: |
8.0000 |
| Original Site Density: |
8.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
0.0 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Tritium Exchange |
| Method for Protolysis: | Surface Charge |
| Fit Method: | MINTEQA2 |
| Comment: |
pK were determined by fitting the calculated surface charge and diffuse-layer potential to measured values of surface charge and zeta potential; MINTEQA2; site concentration determined by deuterium exchange [ML93a] 5+-1 mmol/5mmol of Al(OH)3, C1 and C2 from [JP82]; SSD 8.0 sites/nm^2 [JP82]; mineral not clear (gibbsite or bayerite or amorphous Al(OH)3) |
| |
