RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	O95b
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	0.1 mol/L of NaClO4
Site Type:	»Si-OH
PZC:
pK1:		pK1°_I=0 (Conversion to I = 0):
pK2:	6.9	pK2°_I=0 (Conversion to I = 0):	6.79	pK2_{2.31 nm⁻²} (normalized):	7.07
Site Density in nm^-2:	1.5657
Original Site Density:	2.6 µmol / m² surface
Solid/Liquid Ratio in g/L:	30.0
pH Range:	2-10
Temperature in K:	298.15
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:	C-Letagrop
Comment:	pK also with ionic strength 0.05 M and 50g/L, there SSD=0.96+-0.23 µmol/m^2 and pK2=6.9+-0.2; temperature 25+-0.1°C

1 data sets were retrieved