RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: WDHCR16
SCM Type: CC - Constant Capacitance
Ligand: Cd<2+> - cadmium
Site Type: »Al-OH
Equation: »Al-OH + Cd<2+>  ⇔  »Al-O-Cd<1+> + H<1+>
LogK: -1.68 ± 0.005         LogK°I=0 (Conversion to I = 0):   -1.55         LogK2.31 nm−2 (SSD-normalized):   -0.19
Experiment: Potentiometric Titration
Ionic Strength: 0.01 mol/L NaNO3
Temperature: 301.15 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 3 - 8
Ligand Concentration Range: 8.9E-5 mol/L
Fit Method: FITEQL
Comment: also ion exchange reaction: 2X<1-> + Cd<2+> = X2Cd with log K = 8.30 ± 0.04
 
1 data sets were retrieved