RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Ferrihydrite
Reference: TG16
SCM Type: CDM - (CD-)MUSIC
Ligand: AsO4<3-> - arsenate
Site Type: »Fe-singly
Equation: 2 »Fe-OH<0.5-> + AsO4<3-> + 2 H<1+>  ⇔  »Fe2-O2-AsO2<2-> + 2 H2O
LogK: 27.36        LogK°I=0 (Conversion to I = 0):   27.85         LogK2.31 nm−2 (SSD-normalized):   27.51
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 mol/L NaNO3
Temperature: 294.15 K
pH Range: 4 - 8
Ligand Concentration Range: 6E-5; 6E-4 mol/L
Fit Method: MINTEQ
Comment: 3 mmol/L ferrihydrite and 0.3 mmol/L ferrihydrite;
arsenate surface complexation constants by Gustafsson (unpublished)
 
1 data sets were retrieved