Experimental analysis of tamarind seed powder-based flash powder composition for eco-friendly firecrackers

In this work, considering the various practical concerns during storage, processing, handling and emission of flash powder used for making firecracker, a slight modification was made in chemical composition of flash powder to overcome all the above-mentioned practical concerns. Generally, flash powder chemical composition consists of KNO 3 -60%, Al-20% and S-20% for making firecrackers. The modification was made by replacing 5% and 10% of sulfur with tamarind seed powder (TSP) in the flash powder composition. In this study, all the chemicals used for making flash powder were of nanometer size. Using this TSP-based flash powder, the bijili crackers were fabricated and tested for noise level. The performance of the noise level by TSP-based flash powder was within the specified limits. The safety aspect of TSP-based flash powder was tested for its impact and friction sensitivity. To understand the thermal behavior of the TSP-based flash powder, TG analysis and DSC were performed and compared with existing flash powder composition. The results showed that TSP could be a perfect substituent for sulfur and could play a vital role in the making of eco-friendly (Green) crackers.