Mineral: |
Lepidocrocite |
Reference: |
D86 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
Si(OH)4<0>
- Silicic acid
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Si(OH)4<0> ⇔ »Fe-SiO4-H3 + H2O |
LogK: |
1.96 LogK°I=0 (Conversion to I = 0): 1.96
LogK2.31 nm−2 (SSD-normalized): 2.90
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Solid/Liquid Ratio: |
0.889 g/L |
pH Range: |
8.3 and 7.0 |
Ligand Concentration Range: |
1E-3 mol/L |
Fit Method: |
SURFEQL |
Comment: |
further informations in [D85]?; solid concentration 10mmol/L; original reaction equation in the study is given as »Fe-OH + H2Si=4<2-> + 2H<1+> = »Fe-SiO4-H3 + H2O, logK = 25.1; conversion done with the equation Si(OH)4(aq) = 2H<1+> + SiO2(OH)2<2-> with logK = -23.140 |
|