RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	MDF99b
SCM Type:	CC - Constant Capacitance (C₁: 1.2 F/m²)
Ionic Strength:	0.1 mol/L of NaNO3
Site Type:	»Si-OH
PZC:
pK1:		pK1°_I=0 (Conversion to I = 0):
pK2:	7.6	pK2°_I=0 (Conversion to I = 0):	7.49	pK2_{2.31 nm⁻²} (normalized):	8.07
Site Density in nm^-2:	0.7800
Original Site Density:	0.78 sites / nm² surface
Solid/Liquid Ratio in g/L:	6.0
pH Range:
Temperature in K:
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:	FITEQL
Comment:	SSD=3E-3 mol/l for 300 mg in 50 cm^3; retained value for corrected factor v = 2 cm^3 for the titration starting from neutral pH; for titration starting from acidic pH v=0.5 cm^3: pK2=7.65+/-0.04

1 data sets were retrieved