Fatsiha Mendil, M. Berkani, A. Zamouche
Sep 1, 2013
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Influential Citations
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Journal
Comptes Rendus Chimie
Abstract
Abstract In the present work, we have synthesized praseodymium(III) chloride, PrCl 3 , from the praseodymium oxide, Pr 6 O 11 , by dry method in the presence of ammonium chloride, NH 4 Cl. This study includes the establishment of an assembly synthesis under inert gas. The thermal decomposing process of pure NH 4 Cl was investigated by TG–DTG. The results showed that NH 4 Cl begins to lose weight at 188 °C, large loss of weight ending at 302 °C when NH 4 Cl is heated at the rate of 10 °C/min under N 2 atmosphere. For chlorination, NH 4 Cl participates directly in the reaction, and HCl decomposed from NH 4 Cl also contributes to the chlorination reaction. The influence of various synthesis parameters (temperature, contact time and chemical composition) on the reaction yield was studied, and the optimum conditions for synthesis were, thus, determined and discussed.