RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Biotite
Reference: LPLZI20
SCM Type: NE - Non-electrostatic
Ligand: SeO3<2-> - selenite
Site Type: »X(s)-OH
Equation: »X(s)-OH + SeO3<2-> + H<1+>  ⇔  »X(s)-OH2-SeO3<1->
LogK: 16.43        LogK°I=0 (Conversion to I = 0):   16.65
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 mol/L KClO4
Solid/Liquid Ratio: 20.0 g/L
pH Range: 3 - 11
Ligand Concentration Range: 1E-9 mol/L
Fit Method: PHREEQC
Comment: modelling of sorption edge results; original reaction equation in the study: »X(s)-OH + HSeO3<1-> = »X(s)-OH2-SeO3<1-> with log K = 7.89 (H<1+> + SeO3<2-> = HSeO3<1-> log K = 8.54 (ANDRA 2009, [EHL16]))
 
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