RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: amorphous Silica
Reference: RMCD03
SCM Type: NE - Non-electrostatic
Ligand: Th<4+> - thorium
Site Type: »Si(s)-OH
Equation: »Si(s)-OH + Th<4+> + 3 H2O  ⇔  »Si(s)-O-Th(OH)3 + 4 H<1+>
LogK: -12.0 ± 0.4         LogK°I=0 (Conversion to I = 0):   -10.72
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaClO4
Solid/Liquid Ratio: 0.25 g/L
pH Range: 2 - 9
Ligand Concentration Range: 1.15E-12 mol/L
Fit Method: FITEQL
Comment: Th(IV) hydrolysis constants from Baes and Mesmer [39]; total carbonate concentration = 5E−5 M
 
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