Studies on Phase Chemistry of Meyer′s Reaction of Compound Formation in Alkali Metal Bromide/Rare Earth Metal Tribromide Systems (I) ──A Study on Quaternary System CsBr-LaBr3-HBr(12%)-H2O(25℃)

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (11): 1660.

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Studies on Phase Chemistry of Meyer′s Reaction of Compound Formation in Alkali Metal Bromide/Rare Earth Metal Tribromide Systems (I) ──A Study on Quaternary System CsBr-LaBr₃-HBr(12%)-H₂O(25℃)

WANG Hui, RAN Xin-Quan, CHEN Pei-Heng

Department of Chemistry, Northwest University, Xi′an, 710069

Received:1994-11-30 Revised:1995-04-15 Online:1995-11-24 Published:1995-11-24

Abstract

Abstract: Phase chemistry relation of quaternary system CsBr-LaBr₃-HBr (12%)-H₂O at 25℃ was studied in this paper for the first time,the corresponding equilibrium diagram was constructed.Akind of new compound is discovered in the system,At the same time,X-ray powder diffraction, thermal analysis (TG and DTA) and polarization-character of the new compound obtained from the system were investigated.Comparing the system with quaternary system CsCl-LaCl₃-HCl (13%)-H₂O (25℃) ,bromide system and chloride system are very different in numbers,formula types of the compounds,and in phase chemical behavior.

Key words: Meyer′s reaction, Quaternary system, Lanthanum tribromide, Cesium bromide, Hydrobromic acid

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WANG Hui, RAN Xin-Quan, CHEN Pei-Heng. Studies on Phase Chemistry of Meyer′s Reaction of Compound Formation in Alkali Metal Bromide/Rare Earth Metal Tribromide Systems (I) ──A Study on Quaternary System CsBr-LaBr₃-HBr(12%)-H₂O(25℃)[J]. Chem. J. Chinese Universities, 1995, 16(11): 1660.

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Studies on Phase Chemistry of Meyer′s Reaction of Compound Formation in Alkali Metal Bromide/Rare Earth Metal Tribromide Systems (I) ──A Study on Quaternary System CsBr-LaBr₃-HBr(12%)-H₂O(25℃)

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