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: 2 »X-Na + Cd<2+>  ⇔  (»X)2-Cd + 2 Na<1+>
LogK: 4.94        LogK°I=0 (Conversion to I = 0):   5.20         LogK2.31 nm−2 (SSD-normalized):   4.12
Experiment: Batch Sorption Experiments
Ionic Strength: 0.025 mol/L NaNO3
Temperature: 293.15 K
pH Range: 4-10
Ligand Concentration Range: 3.6E-7 mol/L
Fit Method: MINSQ
Comment: ion exchange, seems to be a combination of SCM/ion exchange model; SCM =XOH + Cd2+ = =XO-Cd+ + H+: logK=-4.13; without assumption of ion exchange: logK=4.88
 
1 data sets were retrieved