Complex of antimony chloride (III), (V)-thiooxine in aqueous and nonaqueous media, and separation of the each from concentrated hydrochloric acid

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  • 非水および水溶液中におけるアンチモン(III),(V)-チオオキシン錯体ならびに塩酸溶液よりのアンチモン(III),(V)の分離
  • ヒスイ オヨビ スイヨウエキ チュウ ニ オケル アンチモン III , V -チオオキシン サクタイ ナラビニ エンサン ヨウエキ ヨリ ノ アンチモン III , V ノ ブンリ

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Description

The reaction between antimony (III), (V) chloride and thiooxine (8-mercaptoquinoline) in aqueous and nonaqueous media was investigated, and the formulas of complexes were determined by the conductimetry and the amounts of Cl, S and Sb in the compounds. Pentachloride precipitated -with the reagent as R2H3SbCl6 in dichloromethane, as RH2SbCl in conc. HCl, and as RSbCl4 in glacial acetic acid.<BR>Trichloride formed RH2SbCl4 in benzene, RSbCl2 in dil. HCl, and RHSbCl3 in glacial acetic acid. Antimony pentachloride gave chloro-complex ion SbCl6- in nonaqueous or conc. HCl solution, but is hydrolyzed to [Sb (OH)xCl6-x]- in dil. HCl after a few hours and was not precipitated with the reagent. On the contrary, antimony trichloride was precipitated in dil. HCl, but was not in conc. HCl.<BR>The gravimetric separation of Sb (III) and Sb (V) using conc. and dil. HCl gave good results.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 13 (12), 1249-1253, 1964

    The Japan Society for Analytical Chemistry

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