RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: WAT01b
SCM Type: DDL - Diffuse Double Layer
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Fe-OH
Equation: 2 »Fe-OH + NpO2<1+>  ⇔  (»Fe-O)2-NpO2<1-> + 2 H<1+>
LogK: -6.79 ± 0.05         LogK°I=0 (Conversion to I = 0):   -6.90         LogK2.31 nm−2 (SSD-normalized):   -4.92
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Ligand Concentration Range: 6E-6 and 1E-12 mol/L
Fit Method: FITEQL
Comment: experimental data from batch sorption experiments [NS91] and [TEI95]; 0.1mol/L NaNO3 or 0.1 mol/L tris(hydroxymethhyl)aminomethane+2-morpholinoethane sulfonic acid; no CO2; solid concentration 1 and 20 g/L
 
1 data sets were retrieved