RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: BB06
SCM Type: NE - Non-electrostatic
Ligand: Am<3+> - americium
Site Type: »X-OH
Equation: »X-OH + Am<3+> + H2O  ⇔  »X-O-Am(OH)<1+> + 2 H<1+>
LogK: -6.7        LogK°I=0 (Conversion to I = 0):   -6.04         LogK2.31 nm−2 (SSD-normalized):   -2.65
Experiment: Batch Sorption Experiments
Ionic Strength: 0.066 mol/L CaCl2
pH Range: 2.5-10.5
Ligand Concentration Range: 6.2E-8 mol/L
Fit Method: MINSORB
Comment: Ca-montmorillonite, MINSORB code (2-site protolysis no electrostatics surface complexation and cation exchange model developed and incorporated into MINEQL); selectivity coefficient for cation exchange Ca-Am=46: 3Ca-mont. + 2Am3+ = 2Am-mont. + 3Ca+; solid concentration 0.86-2 g/L
 
1 data sets were retrieved