Melt-cast explosive material

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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11549146

ABSTRACT:
1-Methyl-2,4,5-Trinitroimidazole is synthesized starting from 4-nitroimidazole using stepwise nitration method and further methylation using Dimethylsulphate. It is relatively insensitive to impact and its thermal stability is excellent. The calculated detonation properties indicate that its performance is about 30% better than TATB. It can be prepared easily, with reasonable yield, starting from commercially available Imidazole. Results from impact sensitivity, friction sensitivity, time-to-explosion temperature and vacuum stability tests indicate that it is less sensitive than both RDX and HMX. The good oxygen balance and measured heat of formation data of this material indicate that its propellant performance should be good.

REFERENCES:
Cho et al., synthesis and characterization of 1-methyl -2,4,5-trinitroimidazole, (Journal of Heterocyclic chemistry (2002), 39 (1), 141-147.
Kerusov et al., Heterocyclic nitro compounds using dimethyl sulfate, (Khimiya Geterotsiklicheskikh Sodinenii (1974), (II).

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