RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Boehmite
Reference: BPGTD91
SCM Type: CC - Constant Capacitance
Ligand: PO4<3-> - phosphate
Site Type: »Al-OH
Equation: »Al-OH + PO4<3-> + 3 H<1+>  ⇔  »Al-H2PO4 + H2O
LogK: 28.98        LogK°I=0 (Conversion to I = 0):   29.17         LogK2.31 nm−2 (SSD-normalized):   27.37
Experiment: Batch Sorption Experiments
Ionic Strength: 0.001 mol/L KCl
Solid/Liquid Ratio: 1.34 g/L
pH Range: 3-11
Ligand Concentration Range: 0.0001 mol/L
Fit Method: FITEQL
Comment: original reaction equation in the study: »Al-OH + H3PO4 = »Al-H2PO4 + H2O with logK = 7.28, formation constant in aqueous solution: PO4<3-> + 3H<1+> = H3PO4 logK = 21.70
 
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