RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Montmorillonite
Reference:	NMBHW16
SCM Type:	NE - Non-electrostatic
Ligand:	Np<4+> - neptunium(IV)
Site Type:	»X(s)-OH
Equation:	»X(s)-OH + Np<4+> + 2 H2O ⇔ »X(s)-O-Np(OH)2<1+> + 3 H<1+>
LogK:	6.5 LogK°_I=0 (Conversion to I = 0): 6.50
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.0 mol/L
Temperature:	298.15 K
Fit Method:
Comment:	"Due to the low RN concentrations investigated in this study and the lack of RN surface complexation constants for the weak sites, only the strong sites were considered as adsorption sites."; surface complexation reactions and constants estimated from the Np-illite constants reported in (Marsac et al., 2015)

1 data sets were retrieved