RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	SVV03
SCM Type:	NE - Non-electrostatic
Ionic Strength:	0.01 mol/L of NaNO3
Site Type:	»Si-OH
PZC:	3.82
pK1:	-0.99	pK1°_I=0 (Conversion to I = 0):	-1.03	pK1_{2.31 nm⁻²} (normalized):	-0.84
pK2:	8.71	pK2°_I=0 (Conversion to I = 0):	8.67	pK2_{2.31 nm⁻²} (normalized):	8.56
Site Density in nm^-2:	3.2355
Original Site Density:	0.00382 mol / g solid
Solid/Liquid Ratio in g/L:	2.5
pH Range:	2.5-9.5
Temperature in K:	303.0
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Potentiometric Titration
Fit Method:
Comment:	fit by Newton-Raphson's multidimensional non-linear regression method, using a computer code developed by Stamberg et al.; sigma of K1=1.44E1; sigma of K2=9.53E7

1 data sets were retrieved