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: »X-H + Cd<2+> + H2O  ⇔  »X-Cd(OH) + 2 H<1+>
LogK: -5.9        LogK°I=0 (Conversion to I = 0):   -5.72         LogK2.31 nm−2 (SSD-normalized):   -1.31
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 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: =XH + Cd<2+>+ H2O = =XCdOH + 2H<1+>: logK=-7.48, results with the protolysis parameter of =XNa (1.57) in logK=-7.48 + 1.58=-5.9; no value for 0.001M
 
1 data sets were retrieved