RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: S05
SCM Type: TL - Triple Layer
Ligand: NO2<1-> - nitrite
Site Type: »Fe-OH
Equation: »Fe-OH + NO2<1-> + H<1+>  ⇔  »Fe-OH2-NO2
LogK: -0.3         LogK2.31 nm−2 (SSD-normalized):   0.64
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 »Fe-OH2<1+> + NO2<1-> = »Fe-OH2-NO2 logK = 6.1 »Fe-OH + H<1+> = »Fe-OH2<1+> -pK1 = logK = 6.4 sum »Fe-OH + NO2<1->+ H<1+> = »Fe-OH2-NO2 logK= 6.1+6.4 = 12.5
 
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