RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: G17
SCM Type: NE - Non-electrostatic
Ligand: Np<4+> - neptunium(IV)
Site Type: »X(s)-OH
Equation: »X(s)-OH + Np<4+> + 3 H2O  ⇔  »X(s)-O-Np(OH)3 + 4 H<1+>
LogK: -0.3        LogK°I=0 (Conversion to I = 0):   -0.30
Experiment: Batch Sorption Experiments
Ionic Strength: 0.0 mol/L
Solid/Liquid Ratio: 1.0 g/L
pH Range: 4 - 10
Ligand Concentration Range: 1E-11 mol/L
Fit Method: PHREEQC
Comment: background electrolyte: Na-Ca-Cl (molar ratio of 2.7 Na/Ca); log K falls outside of the range of the LFER
 
1 data sets were retrieved