RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: PT97
SCM Type: DDL - Diffuse Double Layer
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Si-OH
Equation: »Si-OH + 3 UO2<2+> + 5 H2O  ⇔  »Si-O-(UO2)3(OH)5 + 6 H<1+>
LogK: -15.29        LogK°I=0 (Conversion to I = 0):   -14.65
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Fit Method: MINTEQA2
Comment: equilibrium was achieved during 10 days, sorption process is reversible, ion exchange interactions between the uranyl species and the innerlayer cations were surpressed under the relatively high ionic strength conditions, value also specified in [PTBP98] and [TP99]
 
1 data sets were retrieved