Abstract

An apparatus is described in which radicals can be identified by ESR and molecular products by polarography or gas chromatography. The radicals are removed from the reaction mixture through a micro-leak and condensed in a matrix on a cold finger. From a study of the system, 1 H 2 (1 D 2 ) - 1 O 2 - 4 N 2 at 546°C and a pressure of 1 atm, in reactors with and without a B 2 O 3 coating, evidence has have been produced for the presence of HO − 2 and DO − 2 radicals. Following the earlier suggestion that the formation of H 2 O 2 occurs by bimolecular reaction of HO − 2 , a mechanism is studied and compared with the experimental results.

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