RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: TOS14
SCM Type: NE - Non-electrostatic
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »X-OH
Equation: »X-OH + NpO2<1+>  ⇔  »X-OH-NpO2<1+>
LogK: 2.8        LogK°I=0 (Conversion to I = 0):   2.91         LogK2.31 nm−2 (SSD-normalized):   5.48
Experiment: Mean of Different Sources
Ionic Strength: 0.1 mol/L
pH Range: 3-11
Fit Method: FITEQL
Comment: "The equilibrium constants derived from individual optimization runs using a total of six data-sets from [G94b] and [TPB98a] were averaged".
Ion exchange reaction: ZNa + NpO2<1+> = ZNpO2 + Na<1+> with log K = -0.26
 
1 data sets were retrieved