Mineral: |
Kaolinite |
Reference: |
MBLBK15 |
SCM Type: |
NE - Non-electrostatic |
Ligand: |
PuO2<2+>
- plutonyl(VI)
|
Site Type: |
»X-OH |
Equation: |
»X-OH + PuO2<2+> + 2 H2O ⇔ »X-O-PuO2(OH)2<1-> + 3 H<1+> |
LogK: |
-14.5 LogK°I=0 (Conversion to I = 0): -14.39
LogK2.31 nm−2 (SSD-normalized): -14.91
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
0.1 mol/L
NaClO4
|
Solid/Liquid Ratio: |
4.0 g/L |
Ligand Concentration Range: |
1E-6 mol/L |
Fit Method: |
PHREEQC |
Comment: |
U(VI) literature sorption data are used as analogues for the corresponding Pu redox state, here: Krepelova 2007 (see article); absence (I = 0.1 M NaClO4) and presence (I = 0.01 NaClO4) of CO2; also exchange constants given:
3 X-Na + Pu3+ = X3-Pu + Na+ with log K = 1 and
X-Na + H+ = X-H + Na+ with log K = −1 (from [THB08])
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