RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: SUG10
SCM Type: CC - Constant Capacitance
Ligand: PO4<3-> - phosphate
Site Type: »Fe-OH
Equation: »Fe-OH + PO4<3-> + 2 H<1+>  ⇔  »Fe-PO4H<1-> + H2O
LogK: 26.83        LogK°I=0 (Conversion to I = 0):   26.83         LogK2.31 nm−2 (SSD-normalized):   27.77
Experiment: Not Specified
Ionic Strength: 0.0 mol/L NaNO3
Temperature: 298.15 K
Solid/Liquid Ratio: 0.59 g/L
pH Range: 3-9
Fit Method: MINEQL
Comment: conditional logKint values (I = 0.1 M) were extrapolated to the true logKint values (I = 0 M) using the Davies equation; equilibrium speciation in the presence of goethite was predicted using a modified version of a surface complexation model developed by [CBRZ04]
 
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