RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Bentonite
Reference: LLMSG15
SCM Type: CC - Constant Capacitance
Ligand: NpO2<1+> - neptunyl(V)
Site Type: »Al-OH
Equation: »Al-OH + NpO2<1+> + H2O  ⇔  »Al-O-(NpO2OH)<1-> + 2 H<1+>
LogK: -13.8        LogK°I=0 (Conversion to I = 0):   -13.91         LogK2.31 nm−2 (SSD-normalized):   -11.10
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaCl
Temperature: 298.15 K
Solid/Liquid Ratio: 10.0 g/L
pH Range: 5 - 12
Ligand Concentration Range: 4E-7 mol/L
Fit Method: MINTEQ
Comment: also ion exchange reactions given: »XNa + H<1+> = »XH + Na<1+> with logK = 0.04 and »XNa + NpO2<1+> = »XNpO2 + Na<1+> with logK = 0.015 (SSD of »XNa site is 6.6285 mmol/L)
 
1 data sets were retrieved