RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Alumina
Reference: ZB04b
SCM Type: NE - Non-electrostatic
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Al-OH
Equation: »Al-OH + NpO2<1+> + H2O  ⇔  »Al-O-NpO3H<1-> + 2 H<1+>
LogK: -14.26 ± 0.04         LogK2.31 nm−2 (SSD-normalized):   -15.65
Experiment: Batch Sorption Experiments
Ionic Strength:
Temperature: 298.15 K
Ligand Concentration Range: 1E-14. 1.9E-09. 1.9E-07. 1E-06. 6E-06 mol/L
Fit Method: FITEQL
Comment: average non-electrostatic SC constant for aluminosilicates of 9 curves from [RBMB88], [RBAB91], [AOTKA82], [NS91] and [BPA98]; standard deviation relate to the differences in fitted logK constants from the various batch sorption data sets; IS was 0.01 and 0.1 M, [BPA98]: 2 montmorillonite curves and 4 clinoptilolite curves fit using average aluminol/silanol sites
 
1 data sets were retrieved