RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Goethite
Reference:	MS92
SCM Type:	CC - Constant Capacitance (C₁: 2.9 F/m²)
Ionic Strength:	0.01 mol/L of KNO3
Site Type:	»Fe-OH
PZC:
pK1:	6.7	pK1°_I=0 (Conversion to I = 0):	6.66	pK1_{2.31 nm⁻²} (normalized):	7.08
pK2:	9.0	pK2°_I=0 (Conversion to I = 0):	8.96	pK2_{2.31 nm⁻²} (normalized):	8.62
Site Density in nm^-2:	5.5304
Original Site Density:	0.000135 mol / g solid
Solid/Liquid Ratio in g/L:	10.0
pH Range:	3-8
Temperature in K:
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:	MICROQL
Comment:	C1=2.9+-0.1 F/m^2; proton exchange capacity 0.135 mol/kg=9.18E-6 mol/m^2=5.5 OH sites/nm^2

1 data sets were retrieved