Mineral: |
Kaolinite |
Reference: |
MG96a |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
AsO4<3->
- arsenate
|
Site Type: |
»X-OH |
Equation: |
»X-OH + AsO4<3-> + H<1+> ⇔ »X-AsO4<2-> + H2O |
LogK: |
16.07 LogK°I=0 (Conversion to I = 0): 17.14
LogK2.31 nm−2 (SSD-normalized): 20.70
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
295.15 K |
Solid/Liquid Ratio: |
2.5 g/L |
pH Range: |
2-11 |
Ligand Concentration Range: |
6.7E-7 mol/L |
Fit Method: |
FITEQL |
Comment: |
temperature 22+-1°C; original reaction equation in the study: »X-OH + H3AsO4 = »X-AsO4<2-> + 2 H<1+> + H2O with logK = -4.55, formation constant in aqueous solution: AsO4<3-> + 3 H<+> = H3AsO4<0> logK = 20.62 [GFFGN03] |
|