Mineral: |
amorphous Al(OH)₃ |
Reference: |
ML93b |
SCM Type: |
TL - Triple Layer |
Ligand: |
Si(OH)4<0>
- Silicic acid
|
Site Type: |
»Al-OH |
Equation: |
11 »Al-OH + Si(OH)4<0> + K<1+> ⇔ (»Al-OH)10-Al-H2SiO4K + H<1+> + H2O |
LogK: |
-2.2 LogK°I=0 (Conversion to I = 0): -2.20
LogK2.31 nm−2 (SSD-normalized): -17.44
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.04 mol/L
KNO3
|
Fit Method: |
MINTEQA2 |
Comment: |
AlOH site coverage of 11 sites per adsorbed H4SiO4 was required to model the H4SiO4 adsorption in suspensions containing different amounts of Al(OH)3; log determined by fitting the results of TLM computation to the experimental data for pure Al(OH)3 |
|