RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: HZ16
SCM Type: ES - Extended Stern
Ligand: AsO4<3-> - arsenate
Site Type: »Fe-singly
Equation: 2 »Fe-OH<-0.5> + AsO4<3-> + 2 H<1+>  ⇔  (»Fe-O)2<-0.53>-AsO2<-1.47> + 2 H2O
LogK: 27.7 ± 0.03         LogK2.31 nm−2 (SSD-normalized):   27.85
Experiment: Batch Sorption Experiments
Ionic Strength: NaNO3
pH Range: 4-12
Fit Method: Unknown
Comment: comprising 280 data points with a large range of variation in pH, initial AsO4 concentration, type and concentration of the background electrolyte, and Fh concentration, collected by 6 different research groups. ref. 39–43,51; binuclear bidentate surface complex B; »FeOH(b) with 2.8 sites/nm²
 
1 data sets were retrieved