RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	BH86
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	0.001 mol/L of NaClO4
Site Type:	»Si-OH
PZC:	2.0
pK1:	2.77	pK1°_I=0 (Conversion to I = 0):	2.75	pK1_{2.31 nm⁻²} (normalized):	2.17
pK2:	7.2	pK2°_I=0 (Conversion to I = 0):	7.18	pK2_{2.31 nm⁻²} (normalized):	7.80
Site Density in nm^-2:	0.5811
Original Site Density:	0.000193 mol / g solid
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:	298.15
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:	Unknown
Comment:	25+-2°C, N2-atmosphere, PZC <2; pK1: -0.3 to 2.77; pK2: 5.8 to 7.2; SSD 21.3 to 193.4 µmol/g

1 data sets were retrieved