RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Show Detailed Complexation Query Results


Surface Complex Formation Data:

Mineral: Kaolinite
Reference: RSD15
SCM Type: DDL - Diffuse Double Layer
Ligand: PO4<3-> - phosphate
Site Type: »X-OH
Equation: »X-OH + PO4<3-> + 2 H<1+>  ⇔  »X-H2-PO4 + OH<1->
LogK: 38.95        LogK°I=0 (Conversion to I = 0):   39.44         LogK2.31 nm−2 (SSD-normalized):   38.76
Experiment: Batch Sorption Experiments
Ionic Strength: 0.01 mol/L KCl
Temperature: 25.0 K
Solid/Liquid Ratio: 6.0 g/L
pH Range: 2 - 11
Ligand Concentration Range: 1E-4 mol/L
Fit Method: FITEQL
Comment: original equation in the study: »X-OH + H2PO4<1-> = »X-H2-PO4 + OH<1-> with logK = 19.48 (2H<1+> + PO4<3-> = H2PO4<1->, logK = 19.47)
 
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