State Analysis and Thermal Changes of Dissolved Water in Decane, Dibutyl Ether, 3-Decanone and Methyl Decanoate as Determined by FT IR Spectroscopy

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  • TAKAOKA Kyo
    Department of Energy Science and Engineering, Faculty of Engineering, Musashi Institute of Technology
  • KOBAYASHI Koichi
    Department of Energy Science and Engineering, Faculty of Engineering, Musashi Institute of Technology
  • TAKAHASHI Masashi
    Department of Energy Science and Engineering, Faculty of Engineering, Musashi Institute of Technology
  • SONE Mototaka
    Department of Electrical and Electronics Engineering, Faculty of Engineering, Musashi Institute of Technology

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Other Title
  • FTlR分光法によるデカン,ジブチルエーテル,3-デカノンおよびデカン酸メチル中の各溶存水の状態分析およびその加熱変化について

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The state of dissolved water in hydrophobic organic compounds such as decane (DAN), dibutyl ether (DBE), 3-decanone (DON) and methyl decanoate (MD) were studied by FT IR spectrosco py at 20°C, and examination was also made of the temperature dependence of this water in such solvents.<BR>In DAN, the state of dissolved water was essentially that of water vapor.<BR>In DBE, most of the dissolved water formed large clusters through hydrogen bond between ether groups and water molecules.<BR>In DON, the diss olved water consisted of cluster I (dimer-trimer mixture), II due to hydrogen bond between ketonic group and water molecule, and III of liquid water.<BR>In MD, this water was comprised of clusters I, II and III.<BR>The cluster I in dissolved water were vaporized at 40°C to 80°C, large clusters II and III in dissolved water gradually split into smaller cluster with increasing temperature, though some still remainded.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1999 (1), 25-31, 1999-01-10

    The Chemical Society of Japan

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