RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: CFKM91
SCM Type: TL - Triple Layer
Ligand: ClO4<1-> - perchlorate
Site Type: »Fe-OH
Equation: »Fe-OH + ClO4<1-> + H<1+>  ⇔  »Fe-OH2-ClO4
LogK: 7.63        LogK°I=0 (Conversion to I = 0):   7.72         LogK2.31 nm−2 (SSD-normalized):   8.35
Experiment: Potentiometric Titration
Ionic Strength: 0.01 mol/L NaCl
Temperature: 298.15 K
Solid/Liquid Ratio: 5.5 g/L
pH Range: 4-10
Fit Method: Unknown
Comment: equation in the paper =FeOH2<1+> + Cl<1-> = =FeOH2Cl, logK=2.72; in 0.03M solution logK=3.5, in 0.1M solution logK=1.5 (based on this equation); also electrokinetic measurements with 0.1 g/L
 
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