Mineral: |
Bentonite |
Reference: |
LLMSG15 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
NpO2<1+>
- neptunyl(V)
|
Site Type: |
»Al-OH |
Equation: |
»Al-OH + NpO2<1+> + H2O ⇔ »Al-O-(NpO2OH)<1-> + 2 H<1+> |
LogK: |
-13.8 LogK°I=0 (Conversion to I = 0): -13.91
LogK2.31 nm−2 (SSD-normalized): -11.10
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaCl
|
Temperature: |
298.15 K |
Solid/Liquid Ratio: |
10.0 g/L |
pH Range: |
5 - 12 |
Ligand Concentration Range: |
4E-7 mol/L |
Fit Method: |
MINTEQ |
Comment: |
also ion exchange reactions given: »XNa + H<1+> = »XH + Na<1+> with logK = 0.04 and »XNa + NpO2<1+> = »XNpO2 + Na<1+> with logK = 0.015 (SSD of »XNa site is 6.6285 mmol/L) |
|