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How is antimony sulfide used in fireworks and percussion caps?

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A labeled periodic table entry for antimony shows its symbol Sb, atomic number 51, atomic weight 121.76, electron configuration, and name. It is a solid, weakly acidic other metal with a rhombohedral crystal structure at room temperature. — antimony Properties of antimony.

Antimony sulfide is utilized in the production of fireworks and percussion caps due to its chemical properties. Specifically, antimony trisulfide ( $S b_{2} S_{3}$ ) is incorporated into percussion primer compositions and various pyrotechnic mixtures used in fireworks. Additionally, antimony pentasulfide ( $S b_{2} S_{5}$ ) is also employed in the manufacturing of fireworks. These compounds serve as essential components in these applications, leveraging the reactivity of antimony sulfides to achieve desired pyrotechnic effects.12