RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Magnetite
Reference: FS06
SCM Type: NE - Non-electrostatic
Ligand: Sr<2+> - strontium
Site Type: »Fe-OH
Equation: 2 »Fe-OH + Sr<2+>  ⇔  (»Fe-O)2-Sr + 2 H<1+>
LogK: -13.02 ± 0.42         LogK°I=0 (Conversion to I = 0):   -13.02
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L granitic water
Temperature: 298.15 K
Solid/Liquid Ratio: 40.0 g/L
pH Range: 3.5-9
Ligand Concentration Range: 1E-6 mol/L
Fit Method: STAMB-2003
Comment: m/V also 20g/L
original equation in the study: 2»FeO<1-> + Sr<2+> = (»FeO)2Sr with log K = 6.38 ± 0.42 (»FeO<1-> + H<1+> = »FeOH with log K = 9.70 ± 0.02)
combination of surface complexation and ion exchange model
 
1 data sets were retrieved