RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: AVTC02
SCM Type: CC - Constant Capacitance
Ligand: Fe<2+> - iron(II)
Site Type: »Fe(w)-OH
Equation: »Fe(w)-OH + Fe<2+> + H2O  ⇔  »Fe(w)-O-Fe(OH) + 2 H<1+>
LogK: -11.55 ± 0.23         LogK°I=0 (Conversion to I = 0):   -11.34         LogK2.31 nm−2 (SSD-normalized):   -9.82
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 0.143 g/L
pH Range: 5-9
Ligand Concentration Range: 1.6E-4 mol/L
Fit Method: PEST
Comment: PEST in combination with PHREEQC-2; refit of raw data and logK from [LCV99] (there only one site) to [DM90] database; uncertainty interval indicates the aproximate 95% confidence limits
 
1 data sets were retrieved