Red-burning pyrotechnic flare formulations without chlorine
Monday, August 17, 2015 - 06:00
in Physics & Chemistry
The carmine color of pyrotechnic flares used in military and civilian environments arises from the combustion of strontium salts, some based on chlorides. The military-launched search for chlorine-free formulations has recently ended up with a new composition that overrides the long-standing rule that such formulations require the presence of a chlorine source. The study, which highlights the avoidance of the formation of carcinogenic compounds, has been published in the journal Angewandte Chemie.