摘要
借助于DTA和X射线结构分析研究了PrCl_3-SrCl_2-NaCl三元体系相图,发现本体系内有对应于PrCl_3、SrCl_2、NaCl和Sr_3PrCl_9的4个液相面、5条二次结晶线、1个三元低共熔点E(PrCl_3 68.1,SrCl_2 1.1,NaCl 30.8 wt％;465℃)和三元转熔点P(PrCl_3 65.0,SrCl_2 7.0,NaCl 28.0 wt％;515℃).同时发现有1个固相下形成的不稳定化合物Y(在440℃分解).
The phase diagram of ternary systerm PrCl3-SrCl2-NaCl has been investigated by means of DTA and X-ray diffraction analysis. It was found that there are 4 fields corresponding to the primary crystallization of PrCl3, SrCl2, NaCl and Sr3PrCl9 respectively and 5 univarant lines related to the secondary crystallization in this system. The two reactions occured in this system are:A compound, formed in the solid state ,was found, and it decomposes at 440℃.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第12期1173-1176,共4页
Chemical Journal of Chinese Universities
