RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Site Query Results


Binding Site Data:

Mineral: amorphous Silica
Reference: SVV03
SCM Type: CC - Constant Capacitance   (C1: 4.51 F/m2)
Ionic Strength: 0.01 mol/L of NaNO3
Site Type: »Si-OH
PZC: 4.0
pK1: 0.08 pK1°I=0 (Conversion to I = 0): 0.04 pK12.31 nm−2 (normalized): -0.03
pK2: 8.01 pK2°I=0 (Conversion to I = 0): 7.97 pK22.31 nm−2 (normalized): 8.12
Site Density in nm-2: 1.7956
Original Site Density: 0.00212 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=2.26E2; sigma of K2=4.73E7; C=4.51+-0.746
 
1 data sets were retrieved