Abstract
The effect of pre-aquation of PtCl42- by Hg(II) ion on the rate of extraction of Pt(II) with acetylacetone in dodecane, as the complex Pt(acac)2, was investigated at 25°C. Dependences of initial extraction rates on the concentrations of Hg(II) ion, hydrogen ion and acetylacetone suggested that acceleration of the extraction observed in the pre-aquated system is ascribable to the fast reaction between Pt (H2O)42+ and acetylacetone in aqueous phase. Heating of aqueous solution of PtCl42- and acetylacetone in Teflon bomb reactor was effective to accelerate the complex formation.
