RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Goethite
Reference: MFG98
SCM Type: CC - Constant Capacitance
Ligand: AsO3<3-> - arsenite
Site Type: »Fe-OH
Equation: 2 »Fe-OH + AsO3<3-> + 3 H<1+>  ⇔  (»Fe)2-HAsO3 + 2 H2O
LogK: 43.92         LogK2.31 nm−2 (SSD-normalized):   53.25
Experiment: Batch Sorption Experiments
Ionic Strength:
Fit Method: FITEQL
Comment: background electrolyte information missing; original equation in the study: 2 »Fe-OH + H3AsO3 = (»Fe)2-HAsO3 + 2 H2O, logK = 9.22; formation constant in aqueous solution: H3AsO3 = AsO3<3-> + 3H<1+> with logK = -34,7 (MBK00]
 
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