RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Bentonite
Reference:	SVSBC98
SCM Type:	CC - Constant Capacitance
Ligand:	UO2<2+> - uranyl(VI)
Site Type:	»X-OH
Equation:	»X-OH + UO2<2+> + CO3<2-> ⇔ »X-O-UO2CO3<1-> + H<1+>
LogK:	8.64 LogK°_I=0 (Conversion to I = 0): 9.39 LogK_{2.31 nm⁻²} (SSD-normalized): 12.58
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.1 mol/L granitic water
Temperature:	298.0 K
Solid/Liquid Ratio:	1.98 g/L
pH Range:	4-11
Ligand Concentration Range:	6.67E-7 mol/L
Fit Method:	FITEQL
Comment:	recaculation of the given equation: »X-OH = »X-O<1-> + H<1+> -logK1 = pK2; »X-O<1-> + UO2CO3 = »X-O-UO2CO3<1> logK5; UO2<2+>+CO3<2->= UO2CO3 logKu2=9.94 »X-OH+UO2<2+>+CO3<2->=»X-O-UO2CO3<1->+ H<1+> logK5+logKu2-logK1

1 data sets were retrieved