Mineral: |
Hematite |
Reference: |
LBSSV10 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Am<3+>
- americium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Am<3+> + H2O ⇔ »Fe-O-Am(OH)<1+> + 2 H<1+> |
LogK: |
-5.13 LogK°I=0 (Conversion to I = 0): -5.13
LogK2.31 nm−2 (SSD-normalized): -0.70
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.0 mol/L
NaNO3
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
1.0 g/L |
Ligand Concentration Range: |
3E-11 mol/L |
Fit Method: |
Unknown |
Comment: |
original equation in the study: »Fe-O<1-> + Am(OH)<2+> = »Fe-O-Am(OH)<1+> with logK = 13.12 (K1 = 1.32E+13 L/mol) (Am<3+> + H2O = Am(OH)<2+> + H<1+> with logK = -7.2 given in NEA-TDB); also an ion exchange reaction given: 3»XH + Am<3+> = »X3Am + 3H<1+> with logK = -4.21 |
|