东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (2): 201-204.DOI: -

• 论著 • 上一篇    

稀土气态配合物PrAl_3Br_(12)的热力学研究

于锦;杨冬梅;王之昌   

  1. 东北大学理学院;东北大学理学院;东北大学理学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-02-15 发布日期:2013-06-24
  • 通讯作者: Yu, J.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50274027)

Thermodynamic study on rare earth vapor complex

Yu, Jin (1); Yang, Dong-Mei (1); Wang, Zhi-Chang (1)   

  1. (1) Sch. of Sci., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-02-15 Published:2013-06-24
  • Contact: Yu, J.
  • About author:-
  • Supported by:
    -

RichHTML

0

PDF (PC)

659

摘要： 通过骤冷法实验,在632～833K的温度范围和0 030～0 25MPa的压力范围内,反应平衡时间6h的条件下,对气态配合物PrAlxBr3x+3的形成热力学进行了探讨·结果显示,溴化镨与气态溴化铝二聚体生成的气态配合物PrAl3Br12是惟一产物,反应的平衡常数由骤冷法实验结果计算·其反应的焓变和熵变,由不同温度的稳定常数经最小二乘法求得·

关键词: 稀土, PrAl3Br12, 气态配合物, 骤冷法, 热力学

Abstract: Formation thermodynamics has been investigated for the vapor complexes PrAlxBr3x+3 by quenching experiments which were done within the temperature range from 632 to 833 K and pressure range from 0.030 to 0.25 MPa for about 6 hrs required for balanced reaction. The results showed that the complex PrAl3Br12 is the only one produced from the reaction of praseodymium bromide with vaporized aluminum bromide dimer under the experimental conditions, of which the equilibrium constants of reaction are calculated from experimental data. Based on the stability constants obtained from experiments, the changes of enthalpy and entropy in reaction can be obtained by way of least square.

中图分类号: