RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: SUG10
SCM Type: CC - Constant Capacitance
Ligand: UO2<2+> - uranyl(VI)
Site Type: »Fe-OH
Equation: »Fe-OH + UO2<2+> + PO4<3-> + H<1+>  ⇔  »Fe-PO4UO2 + H2O
LogK: 30.49        LogK°I=0 (Conversion to I = 0):   30.49         LogK2.31 nm−2 (SSD-normalized):   31.43
Experiment: Not Specified
Ionic Strength: 0.0 mol/L NaNO3
Temperature: 298.15 K
pH Range: 3-9
Fit Method: MINEQL
Comment: conditional logKint values (I = 0.1 M) were extrapolated to the true logKint values (I = 0 M) using the Davies equation; equilibrium speciation in the presence of goethite was predicted using a modified version of a surface complexation model developed by [CBRZ04]
 
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