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1,1,1,2,2-Pentafluoro-6-Methyl-3,5-Octanedione as an Extraction Agent for Copper, Cadmium, and Lead

Spankova, M ; Smirnova, L

Chemické listy, 1991-03, Vol.85 (3), p.308-311 [Revista revisada por pares]

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  • Título:
    1,1,1,2,2-Pentafluoro-6-Methyl-3,5-Octanedione as an Extraction Agent for Copper, Cadmium, and Lead
  • Autor: Spankova, M ; Smirnova, L
  • Es parte de: Chemické listy, 1991-03, Vol.85 (3), p.308-311
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descripción: Fluorinated beta -diketones as new extractants for heavy metals were studied. The extraction characteristics of 1,1,1,2,2,-pentafluoro-6-methyl-3,5-octanedione, expressed by log K sub D (HA), pK sub ex and log K sub D (MA sub n ) values, have been determined. The data were obtained by following the process of distribution of the diketone and the chelates of Cu(II), Cd(II), Pb(II) in the system water-p-xylene by methods of UV spectrophotometry and atomic absorption spectrophotometry. The effect of the five fluorine atoms in the beta -diketone molecule on the extraction characteristics is discussed and compared with that of trifluoro analogue.
  • Idioma: Czech
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