FIELD OF THE INVENTION [0002] The present invention relates to a smoke chemical composition for the purpose of protecting a land platform, particularly in the case of an infrared inducing threat. The composition comprises a polyaromatic or polyheteroaromatic compound substituted with 1 to 3 bromine atoms as a fuel in a chemical composition, preferably a smoke-polymerizing composition, and when the composition burns, a toxic substance of a release gas such as hydrobromic acid The content is less than 350 ppm, preferably less than 300 ppm.
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