Shock initiation of 2,4-dinitroimidazole (2,4-DNI)

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The shock sensitivity of the pressed solid explosive 2,4-dinitroimidazole (2,4-DNI) was determined using the embedded manganin pressure gauge technique. At an initial shock pressure of 2 GPa, several microseconds were required before any exothermic reaction was observed. At 4 GPa, 2,4-DNI reacted more rapidly but did not transition to detonation at the 12 mm deep gauge position. At 6 GPa, detonation occurred in less than 6 mm of shock propagation. Thus, 2,4-DNI is more shock sensitive than TATB-based explosives but is considerably less shock sensitive than HMX-based explosives. An Ignition and Growth reactive flow model for 2,4-DNI based on these ... continued below

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6 p.

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Urtiew, P.A.; Tarver, C.M. & Simpson, R.L. July 19, 1995.

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The shock sensitivity of the pressed solid explosive 2,4-dinitroimidazole (2,4-DNI) was determined using the embedded manganin pressure gauge technique. At an initial shock pressure of 2 GPa, several microseconds were required before any exothermic reaction was observed. At 4 GPa, 2,4-DNI reacted more rapidly but did not transition to detonation at the 12 mm deep gauge position. At 6 GPa, detonation occurred in less than 6 mm of shock propagation. Thus, 2,4-DNI is more shock sensitive than TATB-based explosives but is considerably less shock sensitive than HMX-based explosives. An Ignition and Growth reactive flow model for 2,4-DNI based on these gauge records showed that 2,4-DNI exhibits shock initiation characteristics similar to TATB but reacts faster. The chemical structure of 2,4-DNI suggests that it may exhibit thermal decomposition reactions similar to nitroguanine and explosives with similar ring structures, such as ANTA and NTO.

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6 p.

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OSTI as DE95017876

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  • American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995

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  • Other: DE95017876
  • Report No.: UCRL-JC--120140
  • Report No.: CONF-950846--52
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 110745
  • Archival Resource Key: ark:/67531/metadc624753

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  • July 19, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 23, 2016, 12:09 p.m.

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Urtiew, P.A.; Tarver, C.M. & Simpson, R.L. Shock initiation of 2,4-dinitroimidazole (2,4-DNI), article, July 19, 1995; California. (digital.library.unt.edu/ark:/67531/metadc624753/: accessed August 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.