RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Kaolinite
Reference: AJW97
SCM Type: CC - Constant Capacitance
Ligand: Cd<2+> - cadmium
Site Type: Cation exchange site
Equation: »(SiK)2 + Cd<2+>  ⇔  »(Si2)Cd + 2 K<1+>
LogK: 3.01        LogK°I=0 (Conversion to I = 0):   3.14         LogK2.31 nm−2 (SSD-normalized):   2.13
Experiment: Potentiometric Titration
Ionic Strength: 0.005 mol/L KNO3
Temperature: 298.15 K
pH Range: 3.5-9
Ligand Concentration Range: 5E-5 mol/L
Fit Method: FITEQL
Comment: relatively sparse ion-exchange sites on the siloxane faces XH (significant adsorption between pH 3 and 5); other logK for 10, 40, 55, 70°C in [AJW98]
 
1 data sets were retrieved