Ionic Equilibria in Mixed Solvents. V. Intermediates of Polymerization of Aluminum Ion in a 0.2 Mole Fraction Dioxane-Water Mixture

スポンサーリンク

概要

• 論文の詳細を見る

• Formation of highly polymerized hydroxo-complexes of aluminum ions proceeded so slowly in a dioxane-water mixture that less polymerized intermediates were detected by means of the usual emf titration techniques. The titrations were performed at 25° in solutions of total aluminum concentrations of 0.00500, 0.0100, 0.0200, 0.0399, 0.0400 and 0.0798M in a 0.2 mol fraction (55.01 % w/w) dioxane-water mixture containing 3M LiClO<SUB>4</SUB> as an ionic medium. The emf data obtained can be explained in terms of the formation Al<SUB>2</SUB>(OH)<SUB>2</SUB><SUP>4+</SUP> (log<SUP>*</SUP>β<SUB>2,2</SUB>=−6.95±0.07) and Al<SUB>2</SUB>(OH)<SUB>3</SUB><SUP>3+</SUP> (log<SUP>*</SUP>β<SUB>3,2</SUB>=−10.02±0.03) assuming equilibrium conditions. It was observed that these complexes proceed further slowly to form highly polymerized complexes.

• 公益社団法人 日本化学会の論文

著者

• Ohtaki Hitoshi

  The Laboratory of Analytical Chemistry, Faculty of Science, Nagoya University

関連論文

• Ionic Equilibria in Mixed Solvents. V. Intermediates of Polymerization of Aluminum Ion in a 0.2 Mole Fraction Dioxane-Water Mixture

スポンサーリンク