RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Goethite
Reference:	QMC15
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	0.1 mol/L of NaNO3
Site Type:	»Fe(s)-OH
PZC:	10.7
pK1:	6.51	pK1°_I=0 (Conversion to I = 0):	6.40	pK1_{2.31 nm⁻²} (normalized):	6.49
pK2:	9.13	pK2°_I=0 (Conversion to I = 0):	9.02	pK2_{2.31 nm⁻²} (normalized):	9.15
Site Density in nm^-2:	2.1854
Original Site Density:	0.00045 mol / g solid
Solid/Liquid Ratio in g/L:	2.0
pH Range:	3-11,5
Temperature in K:	298.0
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:	PHREEQC
Comment:	nano-goethite; 79% weak sites (»Fe(w)-OH), 20% strong sites (»Fe(s)-OH), 1% very strong sites (»Fe(ss)-OH)

1 data sets were retrieved