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:	NO2<1-> - nitrite
Site Type:	»Si-OH
Equation:	»SiOH + NO2<1-> + H<1+> ⇔ »SiOH2-NO2
LogK:	3.4
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+> + NO2<1-> = »Si-OH2-NO2 logK = 4.8(4.5) »Si-OH + H<1+> = »Si-OH2<1+> - pK1 = logK = -1.4 sum »Si-OH + NO2<1->+ H<1+> = »Si-OH2-NO2 logK = 4.8(4.5)-1.4 = 3.4(3.1)

1 data sets were retrieved