Thermal diffusion measurements of symmetric tetraalkylammonium bromides in water.
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概要
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The Soret coefficients for 0.01 M aqueous solutions of R<SUB>4</SUB>NBr (R=H, Me, Et, <I>n</I>-Pr, <I>n</I>-Bu, <I>n</I>-Pen, <I>n</I>-Hex, and <I>n</I>-Hep) were measured by the Snowdon-Turner conductimetric method with accuracy within ±0.1%, and were found to be −0.13, −4.18, −7.16, −9.05, −9.61, −9.47, −8.65, and −7.34, respectively in 10<SUP>−3</SUP> K<SUP>−1</SUP>, at the mean temperature 25 °C. They show a maximum at the carbon number 4 or 5 in R, whereas the diffusion coefficients show a minimum at the same carbon number in an exactly inverse manner. The apparatus and procedure are described.
- 公益社団法人 日本化学会の論文
著者
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Ikeda Toshio
Department Electronic Engineering Faculty Of Engineering Tohoku University
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Kitano Hiroshi
Department of Chemistry, Faculty of Science, Shizuoka University
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Toma Izumi
Department of Chemistry, Faculty of Science, Shizuoka University
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Kijima Kazuhiro
Department of Chemistry, Faculty of Science, Shizuoka University
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