RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: WAT01b
SCM Type: DDL - Diffuse Double Layer
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Fe-OH
Equation: »Fe-OH + NpO2<1+>  ⇔  »Fe-O-NpO2 + H<1+>
LogK: -2.72 ± 0.03         LogK°I=0 (Conversion to I = 0):   -2.72         LogK2.31 nm−2 (SSD-normalized):   -1.78
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 0.89 g/L
pH Range: 4-9
Ligand Concentration Range: 4.7E-12 mol/L
Fit Method: FITEQL
Comment: site protolyse reference [TS96]; experimental data from batch sorption experiments [GASM91] (pH range there cited)
 
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