Explosive Reactions Produced by Spark Ignition on Mixtures of Fluorine with Fluorocarbons and Chlorofluorocarbons

摘要

Conditions exist for an explosive reaction whenever a mixture is formed from two or more gases which are thermodynamically unstable toward their gaseous reaction products. Reaction under these conditions may be triggered by a localized electric discharge or thermally by elevation of the gas temperature above the adiabatic combustion temperature of the gas mixture. Once initiated, the flame propagates in a manner determined in part by the size, shape, and position of the vessel, the partial pressure of the reactants, the initial temperature, the heat capacity and chemical nature of any diluent, and the specific chemical characteristics of the reactants. The systems which were studied in this investigation involved the oxidant, fluorine with the chlorofluorocarbons, Freon-114, Freon-114A, and trichloroheptafluorobutane and fluorine with the fluorocarbon, perfluorodimethylcyclohexane. 11 figs. (ERA citation 10:037564)