化学学报 ›› 1992, Vol. 50 ›› Issue (3): 257-261. 上一篇    下一篇

研究论文

SmCl~3-SrCl~2-MgCl~2体系相图的研究

张翊凤;孟波   

  1. 东北工学院化学系
  • 出版日期:1992-03-15 发布日期:1992-03-15

Phase diagram of system SmCl~3-SrCl~2-MgCl~2

ZHANG YIFENG;MENG BO   

  • Online:1992-03-15 Published:1992-03-15

利用DTA研究了SmCl~3-SrCl~2-MgCl~2三元体系相图。发现它有对应SmCl~3、SrCl~2、MgCl~2、SmSr~3Cl~9的四个液相面, 五条二次结晶线, 一个三元低共熔点E(41.8mol% SmCl~3, 30.7mol% SrCl~2, 500℃), 一个三元转熔点P(32.0mol% SmCl~3,39.3mol% SmCl~2, 520℃)。

关键词: 三元体系, 氯化镁, 稀土化合物, 熔盐, 相图, 氯化锶, 氯化钐, 差热分析法

The phase diagram of the ternary system SmCl3-SrCl2-MgCl2 was investigated by DTA. There are four surfaces corresponding to the primary crystallization of SmCl3, SrCl2, MgCl2, SmSr3Cl9, resp., and five univariant lines related to the secondary crystallization Ternary eutectic point E (41.8 SmCl3, 30.7 mol.% SrCl2, 500? and ternary peritectic point P (32.0 SmCl3, 39.3 mol.% SrCl2, 520? were observed Two equilibrium reactions with four phases exist, namely, LE J SmCl3 + SmSr3Cl9 + MgCl2 LP + SrCl2 J SmSr3Cl9 + MgCl2.

Key words: TERNARY SYSTEM, MAGNESIUM CHLORIDE, RARE EARTH COMPOUNDS, FUSED SALTS, PHASE DIAGRAM, STRONTRIUM CHLORIDE, SAMARIC CHLORIDE

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