Mineral: |
amorphous Al(OH)₃ |
Reference: |
G86a |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
AsO4<3->
- arsenate
|
Site Type: |
»Al-OH |
Equation: |
»Al-OH + AsO4<3-> + 3 H<1+> ⇔ »Al-H2AsO4 + H2O |
LogK: |
30.51 LogK°I=0 (Conversion to I = 0): 31.05
LogK2.31 nm−2 (SSD-normalized): 32.95
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.01 mol/L
NaClO4
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
0.13 g/L |
pH Range: |
5-8.5 |
Ligand Concentration Range: |
4E-4 mol/L |
Fit Method: |
FITEQL |
Comment: |
experimental raw data from [AM79]; original reaction equation in the study: »Al-OH + H3AsO4 = »Al-H2AsO4 + H2O with logK = 9.89, formation constant in aqueous solution: AsO4<3-> + 3 H<+> = H3AsO4<0> logK = 20.62 [GFFGN03] |
|