RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: amorphous Silica
Reference: S05
SCM Type: TL - Triple Layer
Ligand: HS<1-> - hydrogensulfid
Site Type: »Si-OH
Equation: »SiOH + HS<1-> + H<1+>  ⇔  »SiOH2-HS
LogK: 5.1
Experiment: Literature
Ionic Strength: 1.0 mol/L
Temperature: 298.15 K
Fit Method: Unknown
Comment: calculation from literature values with standard SSA and SSD at ionic strength of 1M, log K for Aerosil in brackets for Cabosil content »Si-OH2<1+> + HS<1-> = »Si-OH2-HS logK = 6.5(6.1) »Si-OH + H<1+> = »Si-OH2<1+> - pK1 = logK = -1.4 sum »Si-OH + HS<1->+ H<1+> = »Si-OH2-HS logK=6.5(6.1)-1.4 = 5.1(4.7)
 
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