RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Quartz
Reference: DK01
SCM Type: NE - Non-electrostatic
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Si(s)-OH
Equation: »Si(s)-OH + UO2<2+> + H2O  ⇔  »Si(s)-O-UO2(OH) + 2 H<1+>
LogK: -3.19        LogK°I=0 (Conversion to I = 0):   -3.19
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaNO3
pH Range: <6
Fit Method: FITEQL
Comment: apparent stability constant for I=0, for conversion to other ionic strengths, activity constants of all surface species are assumed equal to one; no electrical double layer correction to the mass laws for charged surface species; fit with U(VI) adsorption data [KD01] for pH values less than 6.0 and the thermodynamic set in table 2-1 of [DKP01]; termed model B3; model was needed for modeling systems with mixtures of quartz and ferrihydrite [DKJ01]
 
1 data sets were retrieved