Mineral: |
Illite |
Reference: |
MBLMD15 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
Np<4+>
- neptunium(IV)
|
Site Type: |
»X(s)-OH |
Equation: |
»X(s)-OH + Np<4+> + 3 H2O ⇔ »X(s)-O-Np(OH)3 + 4 H<1+> |
LogK: |
0.7 ± 1.3
LogK°I=0 (Conversion to I = 0): 1.98
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
298.0 K |
Solid/Liquid Ratio: |
2.0 g/L |
pH Range: |
3-11 |
Ligand Concentration Range: |
3E-8 - 3E-4 mol/L |
Fit Method: |
PhreePlot |
Comment: |
Na-illite; only Np(V) surface complexation constants for the strong sites were determined; additional reactions and constants from [BB09] used for the modeling (see the study) |
|