Sci. Tech. Energetic Materials, Vol.65, No.6, 2004 215 Review Review of some newly synthesized high energetic materials S. Thangadurai*, K.P.S. Kartha**, D. R. Sharma**, and S. K. Shukla** *Department of Geology and Mining, Guindy, Chennai-600 032, INDIA e-mail:
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[email protected] **Central Forensic Science Laboratory, “Directorate of Forensic Sciences,” Govt. of India, Hyderabad-500 013, INDIA Received: April 12, 2004 Accepted: September 1, 2004 Abstract Towards the end of the last millennium many new high energetic materials were developed. These materials may replace the presently used explosives, sooner or later. In this review, the authors try to explore some of these materials viz., polynitropolycyclic cage explosives, cyclic nitramines, cage explosives, nitro derivatized heterocyclic compounds, nickel hydrazine nitrate (NHN) complex, nitrocubanes, hafnium explosives, heat-resistant explosives, new insensitive high explosives and some other novel high energetic materials. There is a need for the development of analytical methods for identification of these materials and their post explosion residues as these are likely to be encountered in crimes. 1. Introduction much as 80% ammonium nitrate. By the beginning of During the nineteenth century the developing science of World War II, the research to discover alternative explo- chemistry began to create molecular species with explosive sives resulted in another group of explosive molecules that properties. These molecules contain not only atoms that act could be used for the filling of ordnance 2). After two major as fuels, i.e. carbon and hydrogen, but also contain nitro World Wars in twentieth century, picric acid, TNT, tetryl, groups (NO2) similar to nitrates.