Mineral: |
Alumina |
Reference: |
ZB04b |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
NpO2<1+>
- neptunyl(V)
|
Site Type: |
»Al-OH |
Equation: |
»Al-OH + NpO2<1+> ⇔ »Al-O-NpO2 + H<1+> |
LogK: |
-4.67 ± 0.27
LogK2.31 nm−2 (SSD-normalized): -6.06
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
|
Temperature: |
298.15 K |
Ligand Concentration Range: |
1E-14. 1.9E-09. 1.9E-07. 1E-06. 6E-06 mol/L |
Fit Method: |
FITEQL |
Comment: |
average non-electrostatic SC constant for aluminosilicates of 9 curves from [RBMB88], [RBAB91], [AOTKA82], [NS91] and [BPA98]; standard deviation relate to the differences in fitted logK constants from the various batch sorption data sets; IS was 0.01 and 0.1 M; surface complexation to aluminosilicate >SiOH or >AlOH reactive sites is considered equivalent to the reactivity of aluminum oxide and silica reactive sites. |
|