RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Kaolinite
Reference: AF10
SCM Type: NE - Non-electrostatic
Ligand: Cd<2+> - cadmium
Site Type: »X-OH
Equation: »X-OH + Cd<2+>  ⇔  »X-O-Cd<1+> + H<1+>
LogK: -2.8        LogK°I=0 (Conversion to I = 0):   -2.48         LogK2.31 nm−2 (SSD-normalized):   -2.99
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaClO4
Solid/Liquid Ratio: 1.0 g/L
pH Range: 2-8
Ligand Concentration Range: 8.9E-6 mol/L
Fit Method: FITEQL
Comment: Cd adsorption is described by complexation both with the amphoteric site »X-OH and an additional permanent negatively charged surface site: »Y-O<1-> + Cd<2+> = »Y-O-Cd<1+>, log K = 3.9
 
1 data sets were retrieved