RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: KHL99
SCM Type: TL - Triple Layer
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Fe-OH
Equation: »Fe-OH + NpO2<1+>  ⇔  »Fe-O-NpO2 + H<1+>
LogK: -2.09        LogK°I=0 (Conversion to I = 0):   -2.09         LogK2.31 nm−2 (SSD-normalized):   -1.15
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaClO4
Solid/Liquid Ratio: 1.0 g/L
pH Range: 4-10
Ligand Concentration Range: 1.2E-7 mol/L
Fit Method: FITEQL
Comment: I = 0.005 - 0.1 M; inner-sphere complex, no ionic strength dependence; good fit was obtained by pooling all the data for different ionic strengths at 1g/L hematite and Np(V)total=1.2E-7M
 
1 data sets were retrieved