The Kinetics of Association-Dissociation Reaction in an Aqueous Solution of <I>n</I>-Butylamine by Means of Ultrasonic Absorption
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概要
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The ultrasonic absorptions of <I>n</I>-butylamine in aqueous solutions were measured at 25°C in the range of frequency from 15 to 220 MHz and of concentration from 0.698 to 3.00 M. The peak sound absorption was found. The mechanism of the observed peak sound absorption was attributed to the 4A\rightleftharpoonsA<SUB>4</SUB> reaction where A and A<SUB>4</SUB> are the monomer and tetramer of the solute respectively. The rate constants of the forward and backward reaction were determined to be 2.2×10<SUP>6</SUP> M<SUP>−3</SUP> sec<SUP>−1</SUP> and 9.0×10<SUP>7</SUP> sec<SUP>−1</SUP> respectively, and the standard volume change between the initial and final state in the reaction was calculated to be 14 ml mol<SUP>−1</SUP>.
- 公益社団法人 日本化学会の論文
著者
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Nishikawa Sadakatsu
Department Of Applied Chemistry Faculty Of Science And Engineering Saga University
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Yasunaga Tatsuya
Department of Chemistry, Faculty of Science, Hiroshima University
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