RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: RHV07
SCM Type: ES - Extended Stern
Ligand: PO4<3-> - phosphate
Site Type: »Fe-singly
Equation: »Fe-OH<0.5-> + PO4<3-> + 2 H<1+>  ⇔  »Fe-O<0.1->-PO2(OH)<1.40-> + H2O
LogK: 27.97 ± 0.06         LogK2.31 nm−2 (SSD-normalized):   28.04
Experiment: Batch Sorption Experiments
Ionic Strength: NaNO3
pH Range: 4 - 12
Ligand Concentration Range: 4E-4; 4E-4 - 8E-4 mol/L
Fit Method: Unknown
Comment: model C: presence of B, BH and MH species; S/L ratio = 3 g/L (0.4 mM ini. PO4 conc., <0.001, 0.05, 0.10, 0.30, 0.40, 0.50 M NaNO3); S/L ratio = 3 - 9 g/L (0.4 - 0.8 mM ini. PO4 conc., 0.5 M NaNO3); »Fe-OH<0.5-> + PO4<3-> + 2 H<1+> = »Fe-O<-1/2+Δz0>-PO2(OH)<Δz1> + H2O, Δz0 = 0.40±0.03, Δz1 = -1.40±0.03)
 
1 data sets were retrieved