An Investigation on the Phase Diagram of Ternary System NdCl3-BaCl2-NaCl

Abstract

Abstract: The phase diagram of ternary system NdCl₃-BaCl₂-NaCl was investigated by means of DTAand X-ray diffraction analysis. It was found that there are 5 surfaces corresponding to the primary crystallization of NdCl₃,α-BaCl₂,β-BaCl₂, NaCl and Ba3NdCl9 respectively, and 6 univariant lines related to the secondary crystallization in this system. The temperature of the ternary eutectic, composed of 74.0wt%NdCl₃, 24.4wt%NaCl, 1.6wt% BaCl₂, was determined to be 430℃. The temperature of the ternary peritectic, composed of 57.0wt. %NdCl₃, 23.9wt% NaCl,19.1wt%BaCl₂, was observed to be 508℃. Acompound, formed in the solid state, is found, and decomposed occurs at 420℃.

Key words: Phase diagram, NdCl₃, Ternary system NdCl₃-Bad₂-NaCl

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Zheng Chaogui, Ye Yupu . An Investigation on the Phase Diagram of Ternary System NdCl₃-BaCl₂-NaCl[J]. Chem. J. Chinese Universities, 1988, 9(5): 423.

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An Investigation on the Phase Diagram of Ternary System NdCl₃-BaCl₂-NaCl

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