RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Binding Site Data:

Mineral: Kaolinite
Reference: R82a
SCM Type: TL - Triple Layer   (C1: 2.4 F/m2,  C2: 0.2 F/m2)
Ionic Strength: 0.0 mol/L of NaNO3
Site Type: »X-OH
PZC: 4.6
pK1: pK1°I=0 (Conversion to I = 0):  
pK2: pK2°I=0 (Conversion to I = 0):  
Site Density in nm-2: 6.0000
Original Site Density: 6.0 sites / nm² surface
Solid/Liquid Ratio in g/L:
pH Range:
Temperature in K:
Method for Site Density: Tritium Exchange
Method for Protolysis:Potentiometric Titration
Fit Method:graphic extrapolation
Comment: PZC=4.6+-0.3, double extrapolation technique to IS=0; >>SiOH:assumption strong acid sites, >>AlOH: weak acid sites (also successfully modeling with pK2=9.1);
NsSiOH = NsAlOH and NsXOH = NsSiOH + NsAlOH
 
1 data sets were retrieved