RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: MDCF93b
SCM Type: CC - Constant Capacitance
Ligand: La<3+> - lanthanum
Site Type: »Fe-OH
Equation: »Fe-OH + La<3+> + H2O  ⇔  »Fe-O-La(OH)<1+> + 2 H<1+>
LogK: -9.16 ± 0.03         LogK°I=0 (Conversion to I = 0):   -8.41         LogK2.31 nm−2 (SSD-normalized):   -8.22
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 2.0 g/L
pH Range: 5-8
Ligand Concentration Range: 2E-5 mol/L
Fit Method: FITEQL
Comment: no citation of C1 (probably 1.2 as in [MDCF93a] for hematite)!, favoured surface complex for 2 g/L
 
1 data sets were retrieved