RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Kaolinite
Reference: HZ94
SCM Type: DDL - Diffuse Double Layer
Ligand: Cd<2+> - cadmium
Site Type: »X-OH
Equation: »X-OH + Cd<2+>  ⇔  »X-O-Cd<1+> + H<1+>
LogK: -4.13        LogK°I=0 (Conversion to I = 0):   -3.93         LogK2.31 nm−2 (SSD-normalized):   -4.54
Experiment: Batch Sorption Experiments
Ionic Strength: 0.025 mol/L NaNO3
Temperature: 293.15 K
pH Range: 4-10
Fit Method: MINSQ
Comment: 3.6µmol/L Cd2+, seems to be a combination of SCM/ion exchange model; ion exchange 2=XNa + Cd2+ = (=X)2Cd + 2Na+: logK=4.94; without assumption of ion exchange: logK=4.88
 
1 data sets were retrieved