RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Magnetite
Reference: YSHX18
SCM Type: DDL - Diffuse Double Layer
Ligand: Fe<3+> - iron(III)
Site Type: »Fe-OH
Equation: »Fe-OH + Fe<3+>  ⇔  »Fe-O-Fe<2+> + H<1+>
LogK: 8.004        LogK°I=0 (Conversion to I = 0):   8.86         LogK2.31 nm−2 (SSD-normalized):   8.94
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaNO3
Solid/Liquid Ratio: 1.0 g/L
pH Range: 2.3-3.4
Ligand Concentration Range: 1.094E-4 mol/L
Fit Method: FITEQL
Comment: adsorption data for the 1:1 ratio between surface sites and total ferric ions (1 Fe(III)aq site<-1>) were modeled
also surface precipitation model: surface precipitation model extends the surface complexation model by taking into account the formation of a dummy surface phase, Fe(OH)3(s) logK = -8.814.
 
1 data sets were retrieved