| Mineral: |
Hematite |
| Reference: |
EABFY13 |
| SCM Type: |
DDL - Diffuse Double Layer |
| Ligand: |
Eu<3+>
- europium(III)
|
| Site Type: |
»Fe-OH |
| Equation: |
2 »Fe-OH + Eu<3+> ⇔ (»Fe-O)2-Eu<1+> + 2 H<1+> |
| LogK: |
19.97 LogK°I=0 (Conversion to I = 0): 20.28
LogK2.31 nm−2 (SSD-normalized): 21.84
|
| Experiment: |
Batch Sorption Experiments |
| Ionic Strength: |
0.01 mol/L
NaCl
|
| Temperature: |
298.15 K |
| Solid/Liquid Ratio: |
0.5 g/L |
| pH Range: |
3 - 8 |
| Ligand Concentration Range: |
3.7E-8 mol/L |
| Fit Method: |
FITEQL |
| Comment: |
Equilibrium constants referenced to the site-occupancy standard state as suggested by [S03] and calculated using the equation:
K‡ = K((NsAs)²/(N‡A‡))*Cs. Cs is the solid phase concentration in this work (0.5 g/L), Ns and As are the surface site density and surface area measured in this work, 4.28E+18 sites/m² and 30.7 m²/g, respectively. N‡ and A‡ are the hypothetical values suggested by [S03], 10E+18 sites/m² and 10 m²/g, respectively. |
| |
