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: »Al-OH
Equation: »Al-OH + UO2<2+>  ⇔  »Al-O-UO2<1+> + H<1+>
LogK: 2.7        LogK°I=0 (Conversion to I = 0):   3.02         LogK2.31 nm−2 (SSD-normalized):   1.31
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, p(CO2) = 10E-3.5 atm, 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