RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: BB05a
SCM Type: NE - Non-electrostatic
Ligand: NpO2<2+> - neptunyl(VI)
Site Type: »X(s)-OH
Equation: »X(s)-OH + NpO2<2+>  ⇔  »X(s)-O-NpO2<1+> + H<1+>
LogK: -2.9        LogK°I=0 (Conversion to I = 0):   -2.58
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 4.2 g/L
pH Range: 5.5-10.5
Ligand Concentration Range: <9.5E-7 mol/L
Fit Method: MINSORB
Comment: Na-SAz-1, recalculation of source data [TPB98a] with other hydrolysis constants; MINSORB code (2-site protolysis no electrostatics surface complexation and cation exchange model developed and incorporated into MINEQL);
 
1 data sets were retrieved