Mineral: |
Montmorillonite |
Reference: |
BB06 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
PaO2<1+>
- protactinyl(V)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + PaO2<1+> ⇔ »X-O-PaO2 + H<1+> |
LogK: |
2.7 LogK°I=0 (Conversion to I = 0): 2.70
LogK2.31 nm−2 (SSD-normalized): 6.75
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Solid/Liquid Ratio: |
0.65 g/L |
pH Range: |
2.5-10.5 |
Ligand Concentration Range: |
<1E-13 mol/L |
Fit Method: |
MINSORB |
Comment: |
Na-montmorillonite, MINSORB code (2-site protolysis no electrostatics surface complexation and cation exchange model developed and incorporated into MINEQL); original reaction equation in the study: »X-OH + PaOOH<2+> = »X-O-PaO2 + 2 H<1+> with logK = 3.2; formation constant logK = 0.5 for the equation PaO(OH)<2+> = PaO2<1+> + H<1+> [BM76] |
|