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:	Zn<2+> - zinc
Site Type:	»X-Na
Equation:	2 »X-Na + Zn<2+> ⇔ (»X<1->)2-Zn<2+> + 2 Na<1+>
LogK:	4.47 LogK°_I=0 (Conversion to I = 0): 4.90 LogK_{2.31 nm⁻²} (SSD-normalized): 13.65
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: 2 =XH + Zn<2+> = =X2Zn + 2H<1+>: logK=1.31, results with the protolysis parameter of =XNa (1.58) in logK=1.31 + (2*1.58)=4.47

1 data sets were retrieved