Mineral: |
Montmorillonite |
Reference: |
MG97 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
AsO4<3->
- arsenate
|
Site Type: |
»X-OH |
Equation: |
»X-OH + AsO4<3-> + 3 H<1+> ⇔ »X-H2AsO4 + H2O |
LogK: |
18.99 LogK°I=0 (Conversion to I = 0): 20.27
LogK2.31 nm−2 (SSD-normalized): 23.31
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Fit Method: |
FITEQL |
Comment: |
original reaction equation in the study: »X-OH + H3AsO4 = »X-H2AsO4 + H2O with logK = -1.63, formation constant in aqueous solution: H3AsO4 = AsO4<3-> + 3H<1+> with logK = -20.62 [GFFGN03] |
|