RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Bentonite
Reference: YHLGM10
SCM Type: DDL - Diffuse Double Layer
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Al-OH
Equation: »Al-OH + 3 UO2<2+> + 7 H2O  ⇔  »Al-O-(UO2)3(OH)7<2-> + 8 H<1+>
LogK: -23.0        LogK°I=0 (Conversion to I = 0):   -23.00         LogK2.31 nm−2 (SSD-normalized):   -24.61
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaCl
Temperature: 333.0 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 2.5-11
Ligand Concentration Range: 8.2E-5 mol/L
Fit Method: PHREEQC
Comment: also ion exchange reaction: 2»XNa + UO2<2+> = X2(UO2)2 + 2Na<1+> with log K = 0.6
 
1 data sets were retrieved