Solvent effects on dimerization of copper(II) decanoate in alcohol solvents.
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概要
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The extraction of copper(II) with decanoic acid in some alcohol solvents was carried out at 25 °C and at 0.1 mol/dm<SUP>3</SUP> (NaClO<SUB>4</SUB>) aqueous ionic strength. Alcohols used are cyclohexanol, 1-pentanol, 1-hexanol, and 1-heptanol. In these solvents, monomeric and dimeric copper(II) decanoates are responsible for the extraction. Species involved in each organic phase are CuA<SUB>2</SUB>, Cu<SUB>2</SUB>A<SUB>4</SUB>, and Cu<SUB>2</SUB>A<SUB>4</SUB>(HA)<SUB>2</SUB> (HA: decanoic acid). The dimerization and adduct formation of copper(II) decanoates in each organic phase are written as:<BR>2CuA<SUB>2</SUB>\overset<I>K</I><SUB>dim−1</SUB>\rightleftharpoonsCu<SUB>2</SUB>A<SUB>4</SUB><BR>Cu<SUB>2</SUB>A<SUB>4</SUB>+2HA\oversetβ<SUB>ad,dim</SUB>\rightleftharpoonsCu<SUB>2</SUB>A<SUB>4</SUB>(HA)<SUB>2</SUB><BR>The following dimerization and adduct formation constants were obtained: log<I>K</I><SUB>dim−1</SUB>=2.23 and logβ<SUB>ad,dim</SUB>=0.26 for cyclohexanol, 2.26 and −0.03 for 1-pentanol, 2.77 and −0.04 for 1-hexanol, and 3.04 and −0.24 for 1-heptanol, respectively.
- 公益社団法人 日本化学会の論文
著者
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Yamada Hiromichi
Faculty of Engineering, Gifu University
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Kitazaki Ryoji
Faculty of Engineering, Gifu University
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Kakimi Ikuo
Faculty of Engineering, Gifu University
関連論文
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