RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Montmorillonite
Reference: MG97
SCM Type: CC - Constant Capacitance
Ligand: AsO3<3-> - arsenite
Site Type: »X-OH
Equation: »X-OH + AsO3<3-> + 2 H<1+>  ⇔  »X-HAsO3<1-> + H2O
LogK: 30.05        LogK°I=0 (Conversion to I = 0):   31.23         LogK2.31 nm−2 (SSD-normalized):   34.37
Experiment: Batch Sorption Experiments
Ionic Strength: 0.1 mol/L NaCl
Fit Method: FITEQL
Comment: original reaction equation in the study: »X-OH + H3AsO3 = »X-H2AsO3 + H2O with logK = -4.65, formation constant in aqueous solution: H3AsO4 = AsO4<3-> + 3H<1+> with logK = -34.7 [MBK00]
 
1 data sets were retrieved