RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: RSRGC09
SCM Type: DDL - Diffuse Double Layer
Ligand: Th<4+> - thorium
Site Type: »Fe-OH
Equation: 2 »Fe-OH + Th<4+>  ⇔  (»Fe-O)2-Th<2+> + 2 H<1+>
LogK: 7.59 ± 1.25         LogK°I=0 (Conversion to I = 0):   9.09         LogK2.31 nm−2 (SSD-normalized):   9.46
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaClO4
Temperature: 298.0 K
Solid/Liquid Ratio: 10.0 g/L
pH Range: 1-5
Ligand Concentration Range: 1.1E-6 mol/L
Fit Method: FITEQL
Comment: equilibrium contact time of 4 days; species =FeOThOH2+ provided essentially the same fitting as the bidentate complex;
 
1 data sets were retrieved