RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: DLF06
SCM Type: CC - Constant Capacitance
Ligand: SeO3<2-> - selenite
Site Type: »Fe-OH
Equation: »Fe-OH + SeO3<2-> + 2 H<1+>  ⇔  »Fe-OSe(O)OH + H2O
LogK: 25.6        LogK°I=0 (Conversion to I = 0):   25.87         LogK2.31 nm−2 (SSD-normalized):   26.54
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 mol/L NaNO3
Temperature: 298.15 K
Solid/Liquid Ratio: 16.0 g/L
pH Range: 3-12
Ligand Concentration Range: 8E-5 mol/L
Fit Method: FITEQL
Comment: 2pK/Constant Capacitance electrostatic model (CCM); surface complexation constants were obtained from the best values of weighted sum of squares divided by degrees of freedom (WSOS/DF)
 
1 data sets were retrieved