Mineral: |
Montmorillonite |
Reference: |
TOS14 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
NpO2<1+>
- neptunyl(V)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + NpO2<1+> ⇔ »X-OH-NpO2<1+> |
LogK: |
2.8 LogK°I=0 (Conversion to I = 0): 2.91
LogK2.31 nm−2 (SSD-normalized): 5.48
|
Experiment: |
Mean of Different Sources |
Ionic Strength: |
0.1 mol/L
|
pH Range: |
3-11 |
Fit Method: |
FITEQL |
Comment: |
"The equilibrium constants derived from individual optimization runs using a total of six data-sets from [G94b] and [TPB98a] were averaged".
Ion exchange reaction: ZNa + NpO2<1+> = ZNpO2 + Na<1+> with log K = -0.26 |
|