RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: C96
SCM Type: NE - Non-electrostatic
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Fe-OH
Equation: »Fe-OH + NpO2<1+>  ⇔  »Fe-O-NpO2 + H<1+>
LogK: -2.9 ± 0.1         LogK°I=0 (Conversion to I = 0):   -2.90         LogK2.31 nm−2 (SSD-normalized):   2.54
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaClO4
Solid/Liquid Ratio: 0.05 g/L
pH Range: 2-10
Ligand Concentration Range: 2.5E-7 mol/L
Fit Method:
Comment: IS = 0.01 -0.1 M, calculation for IS=0; mean value of intrinsic logK; other logK (apparent/intrinsic): -3.0/-3.0 (0.01M), -2.8/-2.8 (0.1M);carbonate concentration 5E-5M
 
1 data sets were retrieved