RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: amorphous Silica
Reference: MDCF95
SCM Type: CC - Constant Capacitance
Ligand: Yb<3+> - ytterbium
Site Type: »Si-OH
Equation: »Si-OH + Yb<3+> + 2 H2O  ⇔  »Si-O-Yb(OH)2 + 3 H<1+>
LogK: -16.0 ± 0.3         LogK°I=0 (Conversion to I = 0):   -15.36
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaNO3
pH Range: 4-8
Fit Method:
Comment: loading ratio [Yb3+]/[SOH]=0.026; log K=-16.2 for loading ratio 0.26
 
1 data sets were retrieved