RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Alumina
Reference: H17
SCM Type: NE - Non-electrostatic
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Al(w)-OH
Equation: »Al(w)-OH + UO2<2+> + Ca<2+> + 2 CO3<2->  ⇔  »Al(w)-O-UO2(CO3)2<-> + H<1+>
LogK: 21.5576        LogK°I=0 (Conversion to I = 0):   21.56         LogK2.31 nm−2 (SSD-normalized):   21.67
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaClO4
Temperature: 294.15 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 3-11
Ligand Concentration Range: 4E-7 mol/L
Fit Method: CHESS
Comment: Original equation:
>SWOH − 3H+ + UO22+ + 2HCO3− + Ca2+ ⇌ SWO−Ca−UO2(CO3)2−
logK° = -0.9
 
1 data sets were retrieved