A nephelometric analysis of mercury(II) with potassium salt of .ALPHA.,.ALPHA.'-bis(dithiocarboxyoxy)-p-xylene.
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概要
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Potassium salt of α,α′-bis(dithiocarboxyoxy)-<I>p</I>-xylene (abbreviated as K<SUB>2</SUB>-XDX) was synthesized as a chelating agent with <I>p</I>-xylene-α,α′-diol, carbon disulfide, and potassium hydroxide. Since a mercury(II)–XDX chelate complex suspension scattered pearl-blue light strongly because of the formation of a colloidal solution, the nephelometric analysis of small amounts of mercury(II) was undertaken. The calibration curve was found to be linear in the two ranges of 0.03–1.00 and 0.50–25.00 μg cm<SUP>−3</SUP> of the mercury(II) ion respectively, but no suitable masking agents for interfering metal ions were found. The mole ratio of mercury(II) to XDX in the complex was found to be 1 to 1. These data for the complex suggested that XDX and mercury(II) combined alternately to form the (–Hg–XDX–)<I><SUB>n</SUB></I> complex. The molecular weight of this complex could be calculated as about 2×10<SUP>7</SUP> from the Zimm plot on the basis of the light-scattering method.
- 公益社団法人 日本化学会の論文
著者
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Mizuno Haruo
Department Of Biotechnology Graduate School Of Engineering Osaka University
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HIROTA Yasuaki
Department of Dental Anesthesiology, Faculty of Dentistry, Osaka University
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Tsukada Masamichi
Department of Agricultural Chemistry, Faculty of Agriculture, Meiji University
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Yamamoto Daijiro
Department of Agricultural Chemistry, Faculty of Agriculture, Meiji University
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