RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: SMRLG15
SCM Type: NE - Non-electrostatic
Ligand: Eu<3+> - europium(III)
Site Type: »X(s)-OH
Equation: »X(s)-OH + Eu<3+> + 2 H2O  ⇔  »X(s)-O-Eu(OH)2 + 3 H<1+>
LogK: -13.9        LogK°I=0 (Conversion to I = 0):   -13.90
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaCl
Temperature: 298.0 K
Solid/Liquid Ratio: 2.0 g/L
pH Range: 3 - 12
Ligand Concentration Range: 2E-7 mol/L
Fit Method: ECOSAT
Comment: Slightly varied surface complexation constants (Table 3 - values in brackets) are taken for scoping calculations in order to provide for a better fit to the experimental data (see discussion in the text); cation exchange reaction: 3 Na-clay + Eu<3+> = Eu-clay + 3Na<1+>, log K = 1.5
 
1 data sets were retrieved