Mineral: |
Montmorillonite |
Reference: |
BB05a |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
PaO2<1+>
- protactinyl(V)
|
Site Type: |
»X(w)-OH |
Equation: |
»X(w)-OH + Pa<5+> + 4 H2O ⇔ »X(w)-O-Pa(OH)4 + 5 H<1+> |
LogK: |
1.8 LogK°I=0 (Conversion to I = 0): 1.37
|
Experiment: |
Sorption Isotherms |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Fit Method: |
MINSORB |
Comment: |
a priori prediction of the adsorption behavior using a linear-free-energy-relationship (LFER) logK=(6.2+-0.8)+(0.98+-0.09)logK(-4.5) (hydrolysis constant); R=0.98; logK = -4.5 for the aqueous species PaO2OH; surface complex given as =SOPaO2 |
|