Mineral: |
Hematite |
Reference: |
LBSSV10 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Am<3+>
- americium
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + Am<3+> + 2 H2O ⇔ »Fe-O-Am(OH)2 + 3 H<1+> |
LogK: |
-13.39 LogK°I=0 (Conversion to I = 0): -13.39
LogK2.31 nm−2 (SSD-normalized): -8.96
|
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 = 12.76 (K1 = 5.69E+12 L/mol) (Am<3+> + 2H2O = Am(OH)2<1+> + 2H<1+> with logK = -15.10 given in NEA-TDB); also an ion exchange reaction given: 2»XH + AmNO3<2+> = »X2AmNO3 + 2H<1+> with logK = -0.74 |
|