高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (2): 182.

• 论文 • 上一篇    下一篇

EuI2-LiI和EuI2-NaI二元体系相图

赵志刚, 王世华, 蒋盛邦   

  1. 北京师范大学化学系, 北京, 100875
  • 收稿日期:1996-02-10 出版日期:1997-02-24 发布日期:1997-02-24
  • 通讯作者: 王世华.
  • 作者简介:赵志刚, 男, 30岁. 讲师,
  • 基金资助:

    国家科委八·五攀登计划项目资助

Phase Diagram of EuI2-LiI and EuI2-NaI Binary System

ZHAO Zhi-Gang, WANG Shi-Hua, JIANG Sheng-Bang   

  1. Department of Chemistry, Beijing Normal University, Beijing, 100875
  • Received:1996-02-10 Online:1997-02-24 Published:1997-02-24

摘要: 用DTA和x射线粉末衍射法研究EuI2-NaI和EuI2-LiI两个二元体系低压相图.EuI2-NaI二元体系相图为一简单低共熔相图,低共熔点为409℃,其低共熔摩尔组成为32%NaI;EuI2-LiI体系相图也为一简单低共熔相图.低共熔点为385℃,低共熔摩尔组成为68.5%LiI.

关键词: 相图, EuI2-NaI, EuI2-LiI

Abstract: The EuI2-LiIand EuI2-NaIsystems were studied by differential thermal analysis (DTA) and X-ray powder diffraction.The phase diagram of EuI2-LiIis eutectic one.The results show that the eutectic point is at 385 ℃with molar composition 68.5% LiI.The phase diagram of EuI2(Nal is an eutectic point too, the eutectic point exists at 409 ℃with molar composition 32% NaI- In both two systems the crystal transitiori of EuI2 at 354 ℃ has been found.

Key words: Phase diagram, EuI2-NaI, EuI2-LiI

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