RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results

Surface Complex Formation Data:

Mineral:	Goethite
Reference:	CRCO08
SCM Type:	TL - Triple Layer
Ligand:	Na<1+> - sodium
Site Type:	»Fe-OH
Equation:	»Fe-OH + Na<1+> ⇔ »Fe-O-Na + H<1+>
LogK:	-3.1 LogK°_I=0 (Conversion to I = 0): -3.10 LogK_{2.31 nm⁻²} (SSD-normalized): -2.16
Experiment:	Batch Sorption Experiments
Ionic Strength:	0.1 mol/L NaNO3
Temperature:	298.13 K
Solid/Liquid Ratio:	10.0 g/L
pH Range:	4-10
Ligand Concentration Range:	0.1 mol/L
Fit Method:	FITEQL
Comment:	calulated value equ. 1 according [S05] 1. »Fe-O<1-> + Na<1+> = »Fe-O-Na logK = 3.3 2. »Fe-OH = »Fe-O<1-> + H<1+> pK2 = -logK = 6.4 3. sum »Fe-OH + Na<1+> = »Fe-O-Na + H<1+> logK= 3.5 - 6.4 = -3.1

1 data sets were retrieved