RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Goethite
Reference: S79
SCM Type: CC - Constant Capacitance
Ligand: SO4<2-> - sulfate
Site Type: »Fe-OH
Equation: 2 »Fe-OH + SO4<2->  ⇔  (»Fe)2-SO4 + 2 OH<1->
LogK: -13.5        LogK°I=0 (Conversion to I = 0):   -13.07         LogK2.31 nm−2 (SSD-normalized):   -2.96
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaClO4
Temperature: 295.15 K
Solid/Liquid Ratio: 4.6 g/L
pH Range: 4-8
Ligand Concentration Range: 5E-4. 1E-3 mol/L
Fit Method: graphic extrapolation
Comment: cited in [SKS80], [SS87] and [SS80], SCM named \"ligand exchange model'' no dependece on charge
 
1 data sets were retrieved