RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

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Surface Complex Formation Data:

Mineral:	Illite
Reference:	BB09b
SCM Type:	NE - Non-electrostatic
Ligand:	PaO2<1+> - protactinyl(V)
Site Type:	»X(s)-OH
Equation:	»X(s)-OH + PaO2<1+> ⇔ »X(s)-O-PaO2 + H<1+>
LogK:	1.64
Experiment:	Batch Sorption Experiments
Ionic Strength:	1.64 mol/L NaClO4
Temperature:	298.15 K
Solid/Liquid Ratio:	0.67 g/L
pH Range:	2-11
Ligand Concentration Range:	<1E-13 mol/L
Fit Method:	MINSORB
Comment:	Na-Illite; sorption edge measurements; 2SPNE SC/CE model; original reaction equation in the study: »X(s)-OH + PaO(OH)<2+> = »X(s)-O-PaO2 + 2 H<1+> with logK = 0.4; formation constant logK = -1.24 for the equation PaO(OH)<2+> = PaO2<1+> + H<1+> (Trubert et al. 2003); same protolysis data as in [BB09a]

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