RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Illite
Reference: GE07
SCM Type: CC - Constant Capacitance
Ligand: Cd<2+> - cadmium
Site Type: »X-Na
Equation: 2 »X-Na + Cd<2+>  ⇔  (»X)2-Cd + 2 Na<1+>
LogK: 3.13        LogK°I=0 (Conversion to I = 0):   3.19         LogK2.31 nm−2 (SSD-normalized):   12.31
Experiment: Batch Sorption Experiments
Ionic Strength: 0.001 mol/L NaNO3
Temperature: 298.15 K
Solid/Liquid Ratio: 2.97 g/L
pH Range: 3-9
Ligand Concentration Range: 4.96E-5 mol/L
Fit Method: FITEQL
Comment: ion exchange on the surface site; given equation: 2 =XH + Cd<2+> = =X2Cd + 2H<1+>: logK=-0.05, results with the protolysis parameter of =XNa (1.59) in logK=-0.05 + (2*1.59)=3.13
 
1 data sets were retrieved