RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Goethite
Reference: X16
SCM Type: TL - Triple Layer
Ligand: Th<4+> - thorium
Site Type: »Fe-OH
Equation: »Fe-OH + Th<4+> + H<1+>  ⇔  »Fe-OH2-Th<5+>
LogK: 20.48        LogK°I=0 (Conversion to I = 0):   22.30         LogK2.31 nm−2 (SSD-normalized):   21.42
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaCl
Temperature: 323.15 K
Solid/Liquid Ratio: 0.5 g/L
pH Range: 1 - 6
Ligand Concentration Range: 1.3E-7 mol/L
Fit Method: FIT4FD
Comment: Th(IV) hydrolysis constants at these elevated temperatures are extrapolated from the corresponding constants at 25 °C using the van’t Hoff Equation and their reaction enthalpies
 
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