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Copper(I) Bromide: An Alternative Emitter for Blue‐Colored Flame Pyrotechnics
Author(s) -
Juknelevicius Dominykas,
Karvinen Eero,
Klapötke Thomas M.,
Kubilius Rytis,
Ramanavicius Arunas,
Rusan Magdalena
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502752
Subject(s) - pyrotechnics , chromaticity , copper , bromide , chemistry , potassium bromide , analytical chemistry (journal) , materials science , inorganic chemistry , environmental chemistry , optics , explosive material , organic chemistry , physics
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(BrO 3 ) 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.