RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: DKJ01
SCM Type: DDL - Diffuse Double Layer
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Fe(w)-OH
Equation: »Fe(w)-(OH)2 + UO2<2+>  ⇔  »Fe(w)-O2-UO2 + 2 H<1+>
LogK: -5.505        LogK°I=0 (Conversion to I = 0):   -5.51         LogK2.31 nm−2 (SSD-normalized):   -3.77
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaNO3
Ligand Concentration Range: 1E-6 mol/L
Fit Method:
Comment: recalibration of model of [DWP01] (data of [WDPWX94] and addition of new U(VI) adsorption data) for 30µM Fe(total) and 1µM U(total), only modification: recalibration of the stability constant for the weak uranyl complexation reaction from -6.135 (0.001 M ferrihydrite) to -5.505
 
1 data sets were retrieved