Mineral: |
amorphous Silica |
Reference: |
KLW04 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
Al<3+>
- aluminum
|
Site Type: |
»X-OH |
Equation: |
»X-OH + Al<3+> + H2O ⇔ »X-O-Al(OH)<1+> + 2 H<1+> |
LogK: |
-3.0 LogK°I=0 (Conversion to I = 0): -2.25
LogK2.31 nm−2 (SSD-normalized): 0.29
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
KNO3
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
1.0 g/L |
pH Range: |
1-7 |
Ligand Concentration Range: |
1E-4 mol/L |
Fit Method: |
MINTEQA2 |
Comment: |
1 × 10−4 M Al(III)/SiO 2(s) system; SCM/SPM; log K intPS = −4.8 (intrinsic equilibrium constant for Al(III) precipitation) |
|