RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Magnetite
Reference: S05
SCM Type: TL - Triple Layer
Ligand: NH4<+> - ammonium
Site Type: »Fe-OH
Equation: »Fe-OH + NH4<+>  ⇔  »Fe-O-NH4 + H<1+>
LogK: 2.4         LogK2.31 nm−2 (SSD-normalized):   3.34
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-O<1-> + NH4<1+> = »Fe-O-NH4 logK = 12.7 »Fe-OH = »Fe-O<1-> + H<1+> pK2 = -logK = 10.3 sum »Fe-OH + NH4<1+> = »Fe-O-NH4 + H<1+> logK=12.7-10.3 = 2.4
 
1 data sets were retrieved