RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results

Binding Site Data:

Mineral:	Quartz
Reference:	SEM99
SCM Type:	TL - Triple Layer (C₁: 1.3 F/m², C₂: 0.2 F/m²)
Ionic Strength:	0.1 mol/L of NaNO3
Site Type:	»Si-OH
PZC:
pK1:	2.77	pK1°_I=0 (Conversion to I = 0):	2.66	pK1_{2.31 nm⁻²} (normalized):	3.06
pK2:	6.77	pK2°_I=0 (Conversion to I = 0):	6.66	pK2_{2.31 nm⁻²} (normalized):	6.48
Site Density in nm^-2:	4.4852
Original Site Density:	0.000102 mol / L solution
Solid/Liquid Ratio in g/L:	3.3
pH Range:	3-9
Temperature in K:	295.65
Method for Site Density:	Tritium Exchange
Method for Protolysis:	Literature
Fit Method:	FITEQL
Comment:	pK from [H81] original [H77] probably for amorphous silica (SSA 264m^2/g); total surface sites 1.023E-4 mol/L; SSD, C1 and C2 from [R82]; temperature 20-25°C

1 data sets were retrieved