Mineral: |
Goethite |
Reference: |
MG96b |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
PO4<3->
- phosphate
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + PO4<3-> + 3 H<1+> ⇔ »Fe-H2PO4 + H2O |
LogK: |
19.402 LogK°I=0 (Conversion to I = 0): 20.69
LogK2.31 nm−2 (SSD-normalized): 24.08
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
296.15 K |
Solid/Liquid Ratio: |
2.5 g/L |
pH Range: |
2.5-11 |
Ligand Concentration Range: |
2.66E-4 mol/L |
Fit Method: |
FITEQL |
Comment: |
two-site approach (monodentate and bidentate); original reaction equation in the study: »Fe-OH + H3PO4 = »Fe-H2PO4 + H2O with logK = -2.3, formation constant in aqueous solution: PO4<3-> + 3 H<+> => H3PO4<0> logK = 21.702 [GFFGN03] |
|