| Mineral: |
Goethite |
| Reference: |
NFHPL17 |
| SCM Type: |
ES - Extended Stern |
| Ligand: |
SeO3<2->
- selenite
|
| Site Type: |
»Fe-singly |
| Equation: |
2 »Fe-singly-OH<0.5-> + SeO3<2-> + 2 H<1+> ⇔ (»Fe-singly-O)2-SeO<1-> + H2O |
| LogK: |
25.26 LogK°I=0 (Conversion to I = 0): 25.53
LogK2.31 nm−2 (SSD-normalized): 25.41
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.01 mol/L
NaCl
|
| Solid/Liquid Ratio: |
1.0 g/L |
| pH Range: |
5 - 11.5 |
| Ligand Concentration Range: |
2.5E-4 mol/L |
| Fit Method: |
FITEQL |
| Comment: |
simple model; considers the presence of (110) and (021) faces; original equation in the study: 2 »Fe-singly-OH<0.5-> + H2SeO3 = (»Fe-singly-O)2-SeO<1-> + H2O with logK = 14.26 (H2SeO3 = 2H<1+> + SeO3<2-> logK = -11.00, Table S2); Δz0 = 1.12, Δz1 = -1.12; Affinity Constants of Interaction (log K) of Na<1+> and Cl<1-> Interacting with Oppositely Charged Surface Groups of Goethite are the same as in [RHV07]
|
| |
