Dissolution of three insensitive munitions formulations

Susan Taylor, Eileen Park, Katherine Bullion, Katerina Dontsova

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

The US military fires live munitions during training. To save soldiers lives both during training and war, the military is developing insensitive munitions (IM) that minimize unintentional detonations. Some of the compounds in the IM formulation are, however, very soluble in water, raising environmental concerns about their fate and transport. We measured the dissolution of three of these IM formulations, IMX101, IMX104 and PAX21 using laboratory drip tests and studied the accompanying changes in particle structure using micro computed tomography. Our laboratory drip tests mimic conditions on training ranges, where spatially isolated particles of explosives scattered by partial detonations are dissolved by rainfall. We found that the constituents of these IM formulations dissolve sequentially and in the order predicted by their aqueous solubility. The order of magnitude differences in solubility among their constituents produce water solutions whose compositions and concentrations vary with time. For IMX101 and IMX104, that contain 3-nitro-1,2,4-triazol-5-one (NTO), the solutions also vary in pH. The good mass balances measured for the drip tests indicate that the formulations are not being photo-or bio-transformed under laboratory conditions.

Original languageEnglish (US)
Pages (from-to)342-348
Number of pages7
JournalChemosphere
Volume119
DOIs
StatePublished - Jan 1 2015

Keywords

  • DNAN
  • Dissolution
  • Insensitive munitions
  • Micro-computed tomography
  • NTO

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Fingerprint Dive into the research topics of 'Dissolution of three insensitive munitions formulations'. Together they form a unique fingerprint.

Cite this