RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: G94a
SCM Type: CC - Constant Capacitance
Ligand: Cd<2+> - cadmium
Site Type: »Fe-OH
Equation: »Fe-OH + Cd<2+>  ⇔  »Fe-OH-Cd<2+>
LogK: 6.44 ± 0.05         LogK°I=0 (Conversion to I = 0):   6.87         LogK2.31 nm−2 (SSD-normalized):   7.38
Experiment: Potentiometric Titration
Ionic Strength: 0.1 mol/L NaNO3
Temperature: 298.5 K
Solid/Liquid Ratio: 0.058 g/L
pH Range: 2.5-8.5
Ligand Concentration Range: 2.4E-4 - 1.2E-3 mol/L
Fit Method: FITEQL
Comment: 298.5+-0.05K; mixed NaNO3/NaCl-electrolyte 1/1; [FeOH]tot=0.8 mmol/L
 
1 data sets were retrieved