Chen Hai-qun
2008
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Journal
Chemistry World
Abstract
An improved synthesis method of hexachlorocyclotriphosphazene was reported.It was made from ammonium chloride and phosphorus pentachloride using pyridine as an acid-captor in a two-step process.Pyridine could absorb hydrogen chloride produced in the reaction,so the reaction speed was accelerated greatly.The factors affecting the preparation of hexachlorocyclotriphosphazene were investigated.The yield reached 89.4% at optimal conditions.The product was characterized by IR and melting point method.