Ftir-atr and solvent extraction studies on potentiometric responses of neutral carrier type liquid membranes

Masao Sugawara, Xiao Ming Lin, Kayoko Umezawa, Mohamed M.A. Shriadah, Seiichi Nishizawa, Yoshio Umezawa

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Permselective ion transport at the surface of poly(vinyl chloride) supported neutral carrier liquid membranes, contacted with solutions of different kinds of metal salts was investigated by FTIR-ATR spectroscopy. When the PVC supported membranes containing dibenzo-18-crown-6 and bis[(benzo-15-crown-5)-4′-methyl] pimelate respectively were contacted with KCl aqueous solution, selective transport of K+ ions into the interfacial region of the membrane was evidenced by the change in IR spectra through complexation of K+ ions with neutral carriers. The cation permselectivity was correlated with almost zero extractability of liquid/liquid extraction of the corresponding bulk solvent extraction systems. A general empirical relation between potentiometric response slopes of liquid membranes and extractability of metal salts in a series of bulk extraction systems was also deduced.

Original languageEnglish
Title of host publicationProcess Metallurgy
Pages1549-1554
Number of pages6
DOIs
Publication statusPublished - 1992 Jan 1
Externally publishedYes

Publication series

NameProcess Metallurgy
Volume7
ISSN (Print)1572-4409

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Industrial and Manufacturing Engineering

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