RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: GJEAA00
SCM Type: 1pK-BS - 1pK-Basic Stern
Ligand: Co<2+> - cobalt(II)
Site Type: »Fe-singly
Equation: »Fe-singly-OH<0.5-> + Co<2+>  ⇔  »Fe-singly-OH-Co<1.5+>
LogK: 6.7        LogK°I=0 (Conversion to I = 0):   6.70         LogK2.31 nm−2 (SSD-normalized):   6.77
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L NaNO3
pH Range: 4-10
Ligand Concentration Range: 0.1mM and 4E-8 mol/L
Fit Method: FITEQL
Comment: logK(Na+)=0.8, logK(NO3-)=9.2; experiments in 0.05, 0.1N, and 1M NaNO3; introduction of a low concentration of high-affinity sites (0.1 sites/nm^2); inner sphere complex;
 
1 data sets were retrieved