INVESTIGATION ON PHASE DIAGRAM OF SYSTEM LaCl<SUB>3</SUB>-BaCl<SUB>2</SUB>-NaCl

ISSN: 1003-6326
CN: 43-1239/TG
CODEN: TNMCEW

Vol. 7 No. 2 June 1997

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INVESTIGATION ON PHASE DIAGRAM OF SYSTEM LaCl₃-BaCl₂-NaCl

Zheng Yanke; Zheng Chaogui

(Department of Chemistry; Peking University; Beijing 100871)

Abstract: On the basis of reinvestigation of related binary systems, the phase diagram of system LaCl₃ BaCl₂ NaCl was determined by DTA. There are 5 liquid surfaces corresponding to LaCl₃, NaCl, α BaCl₂, β BaCl₂ and Ba₂ LaCl₇ respectively and 6 univariant curves corresponding to the secondary crystallization and eutectic point E(69.0% LaCl₃, 2.0% BaCl₂, 29.0% NaCl, 509 ℃) and peritectic point P (52.0% LaCl₃, 22.0% BaCl₂, 26.0% NaCl, 550 ℃).

Key words: phase diagram LaCl₃ BaCl₂ NaCl LaCl₃

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