Mineral: |
Hematite |
Reference: |
EP20 |
SCM Type: |
DDL - Diffuse Double Layer |
Ligand: |
UO2<2+>
- uranyl(VI)
|
Site Type: |
»Fe-OH |
Equation: |
2 »Fe-OH + UO2<2+> ⇔ (»Fe-O)2-UO2 + 2 H<1+> |
LogK: |
-2.75 LogK°I=0 (Conversion to I = 0): -2.66
LogK2.31 nm−2 (SSD-normalized): -0.88
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.01 mol/L
NaCl
|
Temperature: |
353.15 K |
Solid/Liquid Ratio: |
0.51 g/L |
pH Range: |
3 - 6.5 |
Ligand Concentration Range: |
2.16E-8; 4.35E-8 mol/L |
Fit Method: |
FITEQL |
Comment: |
referenced to the mole fraction standard state and calculated with the equation: log Kχ = log KSC + log (N†AsCs), N†...molar site density (9.47E-6 mol/m²), As...BET surface area (30.7 m²/g), Cs...solid-phase concentration (0.51 g/L) |
|