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: PO4<3-> - phosphate
Site Type: »Fe-singly
Equation: 2 »Fe-OH<-0.5> + PO4<3-> + 3 H<1+>  ⇔  (»Fe-O)2<-0.35>-POOH<-0.65> + 2 H2O
LogK: 33.52 ± 0.13         LogK2.31 nm−2 (SSD-normalized):   33.67
Experiment: Batch Sorption Experiments
Ionic Strength: NaNO3
pH Range: 4-12
Ligand Concentration Range: 2.77E-4 (1); 7.8E-4 (2); 2.45E-3 (3) mol/L
Fit Method: Unknown
Comment: bidentate surface complex BH; S/L ratio: ads. isoth. 0.05-2 g/L (0.01 M NaNO3), ads. edge (1) 0.0707 g/L (0.1 and 0.95 M NaNO3) and (2) 0.602 g/L, (3) 0.201g/L (0.5 NaNO3); »FeOH(b) with 2.8 sites/nm²
 
1 data sets were retrieved