物理化学学报 >> 1987, Vol. 3 >> Issue (03): 334-336.doi: 10.3866/PKU.WHXB19870320

研究简报 上一篇    

在TM-HgI2体系中TmI2生成机理

王世华; 谷亚平; 蒋盛邦   

  1. 北京师范大学化学系
  • 收稿日期:1985-12-27 修回日期:1986-09-15 发布日期:1987-06-15

FORMATION MECHANISM OF TmI2 IN Tm-HgI2 SYSTEM

Wang Shihua; Gu Yaping; Jiang Shengbang   

  1. Department of Chemistry; Beijing Normal University; Beijing
  • Received:1985-12-27 Revised:1986-09-15 Published:1987-06-15

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Abstract: Formation mechanism of TmI_2 in Tm-HgI_2 system was studied by DTA and X-ray powder diffraction technique. Experimental and calculated results showed that formation of TmI_2 (in Tm-HgI_2 system) Could be devided in three steps; (1)At 260-280 ℃, TmI_3 appears. (2) At 280-330 ℃, some TmI_2 forms, (3) The further reaction of TmI_3 with Tm forms TmI_2 at 500-600 ℃.
The conditions for the preparation of TmI_2 were discussed as well.