RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: amorphous Silica
Reference: CSSFZ93
SCM Type: CC - Constant Capacitance
Ligand: Al<3+> - aluminum
Site Type: »Si-OH
Equation: »SiOH + Al<3+> + 2 H2O  ⇔  »SiO-Al(OH)2 + 3 H<1+>
LogK: -10.55
Experiment: Potentiometric Titration
Ionic Strength: 0.6 mol/L NaCl
Temperature: 298.15 K
Solid/Liquid Ratio: 1.0 g/L
pH Range: 3-6
Ligand Concentration Range: 1.12E-4 mol/L
Fit Method: GRFIT
Comment: original equation in this article: p»X-OH + qAl<3+> + rH<1+> = (»X-OH)p-Alq-Hr<(3q+r)+> with p q r = 1 1 -3
 
1 data sets were retrieved