RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	amorphous Silica
Reference:	HL81
SCM Type:	DDL - Diffuse Double Layer
Ionic Strength:	0.025 mol/L of NaClO4
Site Type:	»Si-OH
PZC:	3.5
pK1:		pK1°_I=0 (Conversion to I = 0):
pK2:	6.7	pK2°_I=0 (Conversion to I = 0):	6.63	pK2_{2.31 nm⁻²} (normalized):	7.38
Site Density in nm^-2:	0.4800
Original Site Density:	0.48 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:	298.15
Method for Site Density:	Potentiometric Titration
Method for Protolysis:	Literature
Fit Method:	Unknown
Comment:	PZC from 3.5 to 4.2 by electrophoretic mobility measurement; protolysis constants and SSD from [SK68], [SFDW78], [B57], [H81]; 25+-1°C

1 data sets were retrieved