Copper(I) Bromide: An Alternative Emitter for Blue‐Colored Flame Pyrotechnics |
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| Authors: | Dominykas Juknelevicius Eero Karvinen Prof Dr Thomas M Klapötke Dr Rytis Kubilius Prof Arunas Ramanavicius Dr Magdalena Rusan |
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| Institution: | 1. Faculty of Chemistry, Vilnius University, Naugarduko st. 24, 03225, Vilnius (Lithuania);2. Department of Chemistry, Ludwig‐Maximilian University of Munich, Butenandtstr. 5–13, 81377 Munich (Germany);3. Department of Chemistry, University of Jyv?skyl?, P.O. Box 35, 40014 Jyv?skyl? (Finland);4. Pyrotechnics R&D Department, Blikas Ltd., Motor? st. 6, 02190, Vilnius (Lithuania);5. Laboratory of NanoBioTechnology, Institute of Semiconductor Physics, State Research Institute Centre for Physical and Technological Sciences, A. Go?tauto st. 11, 01108, Vilnius (Lithuania) |
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| Abstract: | Copper(I) bromide was evaluated as an alternative emitter for blue flame pyrotechnic compositions. CuBr and CuCl emission spectra were recorded from a butane torch flame and compared. Cu(BrO3)2 was synthesized and used in pyrotechnic compositions as an oxidizer and the source for the generation of CuBr species. Pyrotechnic compositions, which contained copper and potassium bromates as oxidizers, were optimized for the generation of blue flames. The experimental data, including emission spectra of the flames, chromaticity coordinates, burning rates, luminous intensities, and sensitivity tests, were analyzed and compared. |
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| Keywords: | copper energetic materials pyrotechnics structure– activity relationships synthesis design |
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