Mineral: |
Goethite |
Reference: |
KYFGD10 |
SCM Type: |
ETL - Extended Triple Layer |
Ligand: |
PO4<3->
- phosphate
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + PO4<3-> + H<1+> ⇔ »Fe-O-PO3<2-> + H2O |
LogK: |
26.502
LogK2.31 nm−2 (SSD-normalized): 27.44
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
NaNO3
|
Temperature: |
293.15 K |
Solid/Liquid Ratio: |
1.0 g/L |
pH Range: |
3 - 11 |
Ligand Concentration Range: |
6.46E-4; 3.23E-4; 1.61E-4 mol/L |
Fit Method: |
GEOSURF |
Comment: |
extended TLM; hypothetical 1.0 M standard states; original equation: »Fe-OH + H3PO4 = »Fe-O-PO3<2-> + 2H<1+> + H2O with log K = 4.8, formation constant in aqueous solution: PO4<3-> + 3H<1+> = H3PO4 logK = 21.702 [GFFGN03]; 0.001, 0.01, 0.1 M NaNO3 |
|