RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Hematite
Reference: KILLS98
SCM Type: CC - Constant Capacitance
Ligand: Au<3+> - gold
Site Type: »Fe-OH
Equation: »Fe-OH + AuCl4<1-> + H2O  ⇔  »Fe-OH-AuCl2(OH) + 2 Cl<1-> + H<1+>
LogK: -3.89 ± 0.02         LogK°I=0 (Conversion to I = 0):   -3.03         LogK2.31 nm−2 (SSD-normalized):   -2.95
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaCl
Temperature: 298.2 K
Solid/Liquid Ratio: 70.0 g/L
pH Range: 2-10
Ligand Concentration Range: 1.4-9.2E-4 Au mol/L
Fit Method: FITEQL
Comment: used log K for AuCl4- formation not reported
 
1 data sets were retrieved