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American Chemical Society's Weekly PressPac -- May 21, 2008
Date:5/26/2008

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ARTICLE #3 FOR IMMEDIATE RELEASE

Next-generation explosives: More power and safety without the pollution
Chemistry of Materials

Scientists in Germany are reporting development of a new generation of explosives that is more powerful than TNT and other existing explosives, less apt to detonate accidentally, and produce fewer toxic byproducts. Their study of these more environmentally friendly explosives is scheduled for the June 24 issue of ACS Chemistry of Materials, a bi-weekly journal.

In the new study, Thomas M. Klaptke and Carles Mir Sabate point out that conventional explosives such as TNT, RDX and HMX, widely-used in military weapons, are rich in carbon and tend to produce toxic gases upon ignition. In addition to polluting the environment, these materials are also highly sensitive to physical shock, such as hard impacts and electric sparks, making their handling extremely dangerous. Greener, safer explosives are needed, the researchers say.

To meet this need, Klaptke and Sabate turned to a recently explored class of materials called tetrazoles, which derive most of their explosive energy from nitrogen instead of carbon. They identified two promising tetrazoles: HBT and G2ZT. The researchers developed tiny bombs out of these materials and detonated them in the laboratory. The materials showed less sensitivity to shock than conventional explosives and produced fewer toxic products when burned, the researchers say. MTS

ARTICLE #3 FOR IMMEDIATE RELEASE
Bistetrazoles: Nitrogen-Rich, High-Performing, Insensitive Energetic Compounds

DOWNLOAD FULL TEXT ARTICLE
http://dx.doi.org/10.1021/cm703657k

CONTACT:
Thomas M. Klaptke, Ph.D.
University of Munich
Munich, Germany
Phone: 49 89 2180 77491 (or secretary, 49 89 2180 77494)
Fax: 49-89-2180-77492
Email:

Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society
Source:Eurekalert  

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