物理化学学报 >> 1997, Vol. 13 >> Issue (02): 169-173.doi: 10.3866/PKU.WHXB19970213

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CsBr与SmBr3在氢溴酸介质中反应的相化学

王惠,冉新权,陈佩珩   

  1. 西北大学化学系,西安 710069
  • 收稿日期:1996-07-29 修回日期:1996-10-03 发布日期:1997-02-15
  • 通讯作者: 王惠

Studies on Phase Chemistry of CsBr and SmBr3 Reacting in Hydrobromic Acid

Wang Hui,Ran Xin-Quan,Chen Pei-Heng   

  1. Chemistry Department,Northwest University,Xi'an 710069
  • Received:1996-07-29 Revised:1996-10-03 Published:1997-02-15
  • Contact: Wang Hui

关键词: 四元体系, 溴化铯, 三溴化钐, 氢溴酸, 合成历程

Abstract:

 Study of the phase chemistry relation of quaternary system CsBr-SmBr3-(13%)HBr-H2O at 25 ℃ is carried out in order to investigate the reaction of CsBr and SmBr3 in hydrobromic acid. A new compound 5CsBr.2SmBr3.22H2O is discovered and obtained in the system. X-ray powder diffraction, thermal analysis (TG and DTA) and polarization character of the new compound obtained from the system are investigated. Meanwhile, the synthetic mechanisms of compounds (CsSm2Br7, Cs3Sm2Br9, Cs3SmBr6 and Cs2SmBr5) are suggested on the basis of phase chemical relation of the system.

Key words: Quaternary system, Cesium bromide, Samaric tribromide, Hydrobromic acid, Synthesizing mechanism