RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	K02b
SCM Type:	TL - Triple Layer (C₁: 1.0 F/m², C₂: 0.2 F/m²)
Ionic Strength:	0.1 mol/L of NaNO3
Site Type:	»Si-OH
PZC:	3.5
pK1:	-2.3	pK1°_I=0 (Conversion to I = 0):	-2.41	pK1_{2.31 nm⁻²} (normalized):	-2.00
pK2:	7.7	pK2°_I=0 (Conversion to I = 0):	7.59	pK2_{2.31 nm⁻²} (normalized):	7.40
Site Density in nm^-2:	4.6000
Original Site Density:	4.6 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:	298.15
Method for Site Density:	Mean of Different Sources
Method for Protolysis:	Not Specified
Fit Method:	GEM
Comment:	SSD from [K02a]; 1 bar pressure (air); pK1: =SiO(0.5)H2<+> = =SiO(0.5)H + H<+>; pK2: =SiO(0.5)H = =SiO(0.5)<-> + H<+>; for bidentate surface complexes SSD=2.3 sites/nm^2

1 data sets were retrieved