Potassium 4-Hydroxyamino-5,7-Dinitro-4, 5-Dihydrobenzofurazanide 3-Oxide, the First in a Series of New Primary Explosives

摘要

A structural analog of the primary explosive KDNBF, potassium 4-hydroxyamino-5,7-dinitro-4,5-dihydrobenzofurazanide 3-oxide, readily forms in nearly quantitative yield from reaction of 4,6-dinitrobenzofurazan 1-oxide with hydroxylamine in the presence of KHCO3/MeOH, and is isolated as free flowing nearly spherical crystals. The sensitivity of this compound to mechanical, electrostatic and thermal stimuli is typical of a primary explosive. Admixtures with lead azide are extremely sensitive to stab initiation. The compound thus shows excellent promise as a replacement for tetrazene in percussion and stab sensitive compositions. As a single increment, it ignites readily but power output is poor and sooty, i.e., oxygen deficient.