Mineral: |
Kaolinite |
Reference: |
MG97 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
AsO3<3->
- arsenite
|
Site Type: |
»X-OH |
Equation: |
»X-OH + AsO3<3-> + H<1+> ⇔ »X-AsO3<2-> + H2O |
LogK: |
20.6 LogK°I=0 (Conversion to I = 0): 21.67
LogK2.31 nm−2 (SSD-normalized): 25.23
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Fit Method: |
FITEQL |
Comment: |
monodentate mononuclear As(III)-adsorption; original reaction equation in the study: »X-OH + H3AsO3 = »X-AsO3<2-> + 2 H<1+> + H2O with logK = -14.1, formation constant in aqueous solution: H3AsO4 = AsO4<3-> + 3H<1+> with logK = -34.7 [MBK00] |
|