RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Montmorillonite
Reference:	TOS14
SCM Type:	NE - Non-electrostatic
Ligand:	Am<3+> - americium
Site Type:	»X-OH
Equation:	»X-OH + Am<3+> + 2 H2O ⇔ »X-O-Am(OH)2 + 3 H<1+>
LogK:	-16.6 LogK°_I=0 (Conversion to I = 0): -15.96 LogK_{2.31 nm⁻²} (SSD-normalized): -13.92
Experiment:	Mean of Different Sources
Ionic Strength:	0.1 mol/L
pH Range:	3-11
Fit Method:	FITEQL
Comment:	"The equilibrium constants derived from individual optimization runs using a total of six data-sets from [G94b] and [MBB08] were averaged". Data of [MBB08] were measured for the sorption of Eu(III) on Na-montmorillonite, chemical analogy between Am(III) and Eu(III) is assumed. Ion exchange reaction: 3ZNa + Am<3+> = Z3Am + 3Na<1+> with log K = 2.05

1 data sets were retrieved