RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Quartz
Reference: ZB04b
SCM Type: NE - Non-electrostatic
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Si-OH
Equation: »SiOH + NpO2<1+> + H2O  ⇔  »SiO-NpO3H<1-> + 2 H<1+>
LogK: -12.16
Experiment: Batch Sorption Experiments
Ionic Strength:
Temperature: 298.15 K
Ligand Concentration Range: 1E-14. 1E-07. 1E-06 mol/L
Fit Method: FITEQL
Comment: average non-electrostatic SC constant for aluminosilicates of 6 curves from [RBAB91] and [BPA98]; IS was 0.1 M; surface complexation to aluminosilicate >SiOH or >AlOH reactive sites is considered equivalent to the reactivity of aluminum oxide and silica reactive sites.
 
1 data sets were retrieved