中华医学超声杂志

应用化学 ›› 1989, Vol. 0 ›› Issue (2): 77-81.

• 研究简报 • 上一篇    下一篇

三水合硝酸镱与B15C5配合行为的研究

薛鸿福, 王延琦, 任德厚   

  1. 西北大学化学系 西安
  • 收稿日期:1988-01-25 修回日期:1988-10-04 出版日期:1989-04-10 发布日期:1989-04-10
  • 基金资助:
    国家科学基金

ON THE COORDINATION OF TRIHYDRATED YTTERBIUM NNTRATE WITH CROWN ETHER B15C5

Xue Hongfu, Wang Yanqi, Ren Dehou   

  1. Department of Chemistry, Northwest University, Xi'an
  • Received:1988-01-25 Revised:1988-10-04 Published:1989-04-10 Online:1989-04-10

PDF

387

被引次数

5

摘要： 在研究Yb(NO3)3·3H2O-B15C5-C2H5OH(CH3COCH3)体系的基础上,本文用改进的半微量相平衡方法研究了Yb(NO3)3·3H2O-B15C5-CH3OH三元体系在18℃时的溶解度,比较了三水硝酸镜和B15C5在不同溶剂中的配合行为,考察了配合物组成与存在条件的关系.

关键词: 硝酸镱, 冠醚, 相平衡, 配位化合物

Abstract: The solubilities of the ternary system,Yb(NO3)3·3H2O-B15C5-CH3OH, at 18℃ havebeen investigated by a modified semimcro phase equilibrium method through mesuiementof the refractive indexes of the saturated solutions.The results showed that in the ternarysystem there is only one complex formed with composition of Yb(NO3)3·B15C5·3H2O·2CH3OH.which had been identified by thermal analysis. The molar ratio of ytterbium salt to water in complexes was found to be 1:3 in anypreparation and there was the same molar content of organic molecule in complexes, i.e.0.65 for all three solvents after the complexes were maintained till constant in weight indiscator with concentrated H2SO4.

Key words: Ytterbium ntirate, Crown ether, Phase equilibrium, Coordination compound

网站版权 © 应用化学     本网站备案：吉ICP备12000082号