Qualitative Analysis of Primers, Tracers, Igniters, Incendiaries, Boosters, and Delay Compositions on a Micro Scale by Use of Infrared Spectroscopy
FRANKFORD ARSENAL PHILADELPHIA PA
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The application of infrared spectroscopy to the detection of the constituents of primers, tracers, igniters incendiaries, boosters, delay compositions on a micro scale was investigated. It is shown that these constituents can be identified quickly and with certainty, using infrared pellet technique to detect organic and inorganic compounds and emission spectroscopy to identify the metals. In making the pellet, 1 to 2 mg of the material is ground with 300 mg of potassium bromide and the pellet formed in the die press. The grinding and pressing operation has been found to be completely safe even with the most sensitive explosives, once the material has been mixed with the potassium bromide. The infrared spectra of 43 of the most common ingredients of primers, tracers, igniters, incendiaries, boosters, and delay compositions are given over the range 2.5 to 50 microns. The qualitative analysis of seven typical compositions is demonstrated.