1969 Volume 42 Issue 10 Pages 2778-2790
As it was found that metallic iron is dissolved in acetylacetone (Hacac), the interaction between the solute and the solvent in the dissolution phenomena, together with the process of the dissolution of metal, were examined in detail in order to apply it to analytical techniques. The factors of the oxygen, the co-existing water, and the dissociated proton in acetylacetone were shown to be effective in the dissolution. With typical β-diketones, the exception of acetylacetone, such as trifluoroacetylacetone (HTFA), hexafluoroacetylacetone (HHFA), benzoyltrifluoroacetone (HBTA), 2-furoyltrinuoroacetone (HFTA), and 2-thenoyltrifluoroacetone (HTTA), were also employed; they were shown to have the same properties as the above one. The relationship between the solubilities of metals and the effect of adding an organic solvent, the equilibrium reactions of fluorine-containing β-diketones with water or alcohols, or the preferred enol forms of trifluorosubstituted β-diketones, were also discussed, paying attention to the accelerating effects of the solvents on the dissolution.
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