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: Ni<2+> - nickel
Site Type: »X-Na
Equation: 2 »X-Na + Ni<2+>  ⇔  (»X<1->)2-Ni<2+> + 2 Na<1+>
LogK: 3.52        LogK°I=0 (Conversion to I = 0):   3.58         LogK2.31 nm−2 (SSD-normalized):   12.70
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 + Ni<2+> = =X2Ni + 2H<1+>: logK=0.34, results with the protolysis parameter of =XNa (1.59) in logK=0.34 + (2*1.59)=3.52
 
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