Density Distributions in TATB Prepared by Various Methods

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The density distribution of two legacy types of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) particles were compared with TATB synthesized by new routes and recrystallized in several different solvents using a density gradient technique. Legacy wet (WA) and dry aminated (DA) TATB crystalline aggregates gave average densities of 1.9157 and 1.9163 g/cc, respectively. Since the theoretical maximum density (TMD) for a perfect crystal is 1.937 g/cc, legacy TATB crystals averaged 99% of TMD or about 1% voids. TATB synthesized from phloroglucinol (P) had comparable particle size to legacy TATBs, but significantly lower density, 1.8340 g/cc. TATB synthesized from 3,5 dibromoanisole (BA) was very difficult ... continued below

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Hoffman, D M & Fontes, A T May 13, 2008.

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The density distribution of two legacy types of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) particles were compared with TATB synthesized by new routes and recrystallized in several different solvents using a density gradient technique. Legacy wet (WA) and dry aminated (DA) TATB crystalline aggregates gave average densities of 1.9157 and 1.9163 g/cc, respectively. Since the theoretical maximum density (TMD) for a perfect crystal is 1.937 g/cc, legacy TATB crystals averaged 99% of TMD or about 1% voids. TATB synthesized from phloroglucinol (P) had comparable particle size to legacy TATBs, but significantly lower density, 1.8340 g/cc. TATB synthesized from 3,5 dibromoanisole (BA) was very difficult to measure because it contained extremely fine particles, but had an average density of 1.8043 g/cc over a very broad range. Density distributions of TATB recrystallized from dimethylsulfoxide (DMSO), sulfolane, and an 80/20 mixture of DMSO with the ionic liquid 1-ethyl-3-methyl- imidazolium acetate (EMImOAc), with some exceptions, gave average densities comparable or better than the legacy TATBs.

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PDF-file: 23 pages; size: 1.4 Mbytes

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  • Journal Name: Propellants, Explosives, Pyrotechnics, vol. 35, no. 1, January 1, 2010, pp. 15-23; Journal Volume: 35; Journal Issue: 1

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  • Report No.: LLNL-JRNL-403880
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 973329
  • Archival Resource Key: ark:/67531/metadc929051

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 13, 2008

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 7:55 p.m.

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Hoffman, D M & Fontes, A T. Density Distributions in TATB Prepared by Various Methods, article, May 13, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc929051/: accessed May 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.