RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Illite
Reference: GE07
SCM Type: CC - Constant Capacitance
Ligand: Ni<2+> - nickel
Site Type: »X-Na
Equation: »X-Na + Ni<2+> + H2O  ⇔  »X-Ni(OH) + 2 Na<1+>
LogK: -4.56        LogK°I=0 (Conversion to I = 0):   -4.13         LogK2.31 nm−2 (SSD-normalized):   0.03
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 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 + Ni<2+>+ H2O = =XNiOH + 2H<1+>: logK=-6.14, results with the protolysis parameter of =XNa (1.58) in logK=-6.14 + 1.58=-4.56; no value for 0.001 M
 
1 data sets were retrieved