RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral: Corundum
Reference: S05
SCM Type: TL - Triple Layer
Ligand: NH4<+> - ammonium
Site Type: »Al-OH
Equation: »Al-OH + NH4<+>  ⇔  »Al-O-NH4 + H<1+>
LogK: 0.3         LogK2.31 nm−2 (SSD-normalized):   -1.09
Experiment: Literature
Ionic Strength: 1.0 mol/L
Temperature: 298.15 K
Fit Method: Unknown
Comment: calculation from literature values with standard SSA and SSD at ionic strength of 1M »Al-O<1-> + NH4<1+> = »Al-O-NH4 logK = 12.5 »Al-OH = »Al-O<1-> + H<1+> pK2 = -logK = 12.2 sum »Al-OH + NH4<1+> = »Al-O-NH4 + H<1+> logK=12.5 -12.2 = 0.3
 
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