均一溶液からカドミウム8-ヒドロキシキノレートに対する鉛の共沈殿(続報)

概要

論文の詳細を見る
An 8-acetoxyquinoline solution was added to the solution of pH 9 containing cadmium and lead ions to precipitate the 8-hydroxyquinolate from homogenoous solution. The crystal habit of the precipitates wa sstudied from the viewpoint of crystal chemistry. Cadmium 8-hydroxyquinolate appeared initially in the needle form accompanied with a slight amount of lead. The precipitation of most of cadmium was followed by the precipitation of lead 8-hydroxyquinolate crystals in the long needle form. The needle crystals of cadmium 8-hydroxyquinolate belonging to the tetragonal system transform easily to the hexagonal plate crystals belonging to the monoclinic system. But the transformation was restrained by the presence of stable needle crystals of lead 8-hydroxyquinolate. When cadmium and 8-acetoxyquinoline solutions were added to the suspended solution of the needle crystals of lead 8-hydroxyquinolate at pH 9, lead was replaced so rapidly with cadmium that cadmium 8-hydroxyquinolate formed as the needle crystals, and then the appearance of the long needle crystals of lead 8-hydroxyquinolate was followed. Cadmium 8-hydroxyquinolate crystals formed were of needle shape, differing from the hexagonal plate in the stable form, but it was found that their crystal structure belonged to the monoclinic system. The shape of cadmium 8-hydroquinolate crystals was affected by the presence of the needle crystals of lead 8-hydroxyquinolate and they kept the needle shape.
社団法人日本分析化学会の論文
1977-07-05

均一溶液からカドミウム8-ヒドロキシキノレートに対する鉛の共沈殿(続報)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク