Tube radial distribution of solvents observed in an aqueous ionic liquid: Mixed solution delivered into a capillary tube

Yuki Kawai, Masaharu Murata, Masahiko Hashimoto, Kazuhiko Tsukagoshi

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The tube radial distribution of solvents was observed in an aqueous ionic liquid mixed solution of 1-butyl-3-methylimidazolium chloride fed into a capillary tube. A phase diagram was constructed with 1-butyl-3-methylimidazolium chloride and potassium hydroxide, which included boundary curves between homogeneous and heterogeneous solutions at 15 and 20°C. As an example, an aqueous ionic liquid mixed homogeneous solution, comprising the ratio of 1-butyl-3-methylimidazolium chloride:potassium hydroxide (30.5:16.5 wt/wt%), which were positioned near the boundary at 20°C, were delivered into a fused-silica capillary tube (75 μm i.d., 110 cm length, 15°C tube temperature) at a flow rate of 1.0 μL min-1. The homogeneous solution changed to a heterogeneous solution with two phases: the inner (the aqueous phase merely containing the ionic liquid) and the outer (the ionic liquid-rich) phases, in the capillary tube. The radial distribution of the solvents in the aqueous ionic liquid mixed solution was observed through a bright-light microscope-CCD camera system.

    Original languageEnglish
    Pages (from-to)1029-1031
    Number of pages3
    Journalanalytical sciences
    Volume28
    Issue number11
    DOIs
    Publication statusPublished - Jan 1 2012

    Fingerprint

    Ionic Liquids
    Capillary tubes
    Fused silica
    CCD cameras
    Phase diagrams
    Microscopes
    Flow rate
    1-butyl-3-methylimidazolium chloride

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry

    Cite this

    Tube radial distribution of solvents observed in an aqueous ionic liquid : Mixed solution delivered into a capillary tube. / Kawai, Yuki; Murata, Masaharu; Hashimoto, Masahiko; Tsukagoshi, Kazuhiko.

    In: analytical sciences, Vol. 28, No. 11, 01.01.2012, p. 1029-1031.

    Research output: Contribution to journalArticle

    Kawai, Yuki ; Murata, Masaharu ; Hashimoto, Masahiko ; Tsukagoshi, Kazuhiko. / Tube radial distribution of solvents observed in an aqueous ionic liquid : Mixed solution delivered into a capillary tube. In: analytical sciences. 2012 ; Vol. 28, No. 11. pp. 1029-1031.
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