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Küblböck, Teresa; Klapötke, Thomas M. (2018): Combining Higher Efficiency with Lower Costs: an Alternative Hexamine-Based White Smoke Signal. In: Propellants Explosives Pyrotechnics, Vol. 43, No. 11: pp. 1184-1189
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Abstract

The effect of applying hexamine as main fuel in terephthalic acid-based white smoke formulations is discussed. For this reason, a simple four ingredients mixture only consisting of terephthalic acid, hexamine, potassium chlorate and a magnesium carbonate derivative was introduced. We started from a minimum amount of dye and constantly increased the dye percentage in 5.0 wt-% steps to investigate the influence on emerging smoke properties. This procedure ensures that the amount of dye present in the aerosol can be optimized to obtain the most persistent, thick white smoke cloud. Previous research on white smokes in our group indicated an overall higher smoke performance in terms of efficiency and advanced persistence by using 5-amino-1H-tetrazole as main fuel instead of sugar. From a costs point of view, hexamine would be favored, since it offers a low-cost alternative to 5-amino-1H-tetrazole.