A green metal-free fused-ring initiating substance

Mucong Deng, Yongan Feng, Wenquan Zhang, Xiujuan Qi and Qinghua Zhang ()
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Mucong Deng: China Academy of Engineering Physics
Yongan Feng: China Academy of Engineering Physics
Wenquan Zhang: China Academy of Engineering Physics
Xiujuan Qi: Southwest University of Science and Technology
Qinghua Zhang: China Academy of Engineering Physics

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Over the past century, the search for lead-free, environmentally friendly initiating substances has been a highly challenging task in the field of energetic materials. Here, an organic primary explosive featuring a fused-ring structure, 6-nitro-7-azido-pyrazol[3,4-d][1,2,3]triazine-2-oxide, was designed and synthesized through a facile two-step reaction from commercially available reagents. This organic initiating substance meets nearly all of the stringent criteria of environmentally friendly primary explosives for commercial applications: it is free of toxic metals and perchlorate, has a high density, high priming ability, unusual sensitivities towards non-explosive stimuli, excellent environmental resistance, decent thermal stability, high detonation performance, satisfactory flowability and pressure durability, and is low-cost and easy to scale-up. These combined properties and performance measures surpass the current and widely used organic primary explosive, DDNP. The fused-ring organic primary explosive reported herein may find real-world application as an initiating explosive device in the near future.

Date: 2019
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DOI: 10.1038/s41467-019-09347-y

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