RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Bentonite
Reference: MG07
SCM Type: NE - Non-electrostatic
Ligand: Sr<2+> - strontium
Site Type: »X(w)-OH
Equation: »X(w)-OH + Sr<2+>  ⇔  »X(w)-O-Sr<1+> + H<1+>
LogK: -5.2
Experiment: Sorption Isotherms
Ionic Strength: NaClO4
Temperature: 298.15 K
pH Range: 6.5
Ligand Concentration Range: 1E-9 - 1E-4 mol/L
Fit Method: CHESS
Comment: S/L ratio = 1-6 g/L; ion exchange 2»XNa + Sr<2+> = (»X)2Sr + 2Na<1+> with logK = 0.66; obviously wrong equation in the article: »X(s)-OH + Sr<2+> = »X(w)-OH-Sr<1+> + H<1+>
 
1 data sets were retrieved