RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Bentonite
Reference: LYGZW13
SCM Type: NE - Non-electrostatic
Ligand: Eu<3+> - europium(III)
Site Type: »Al-OH
Equation: »Al-OH + Eu<3+> + 3 H2O  ⇔  »Al-O-Eu(OH)3<1-> + 4 H<1+>
LogK: -24.2         LogK2.31 nm−2 (SSD-normalized):   -21.50
Experiment: Batch Sorption Experiments
Ionic Strength: NaCl
Temperature: 295.0 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 3 - 10.5
Ligand Concentration Range: 1E-9 to 1E-4 mol/L
Fit Method: FITEQL
Comment: 0.001 - 0.5 mol/L NaCl;
also ion exchange modeled: 3»XNa + Eu<3+> = (»X)3Eu + 3Na<1+>, log K = 2.0;
also log K = 1.8 for the strong aluminol site but no SSD and pK values given;
paper is in chinese language!
 
1 data sets were retrieved