Cause Of Sparkling Of Red Color After Blast

Why sparkling red color after the blast of fire crackers?

Sparkling red color after the blast of fire crackers is due to the presence of sulphur. Sulfur or sulphur is the chemical element with atomic number 16, represented by the symbol S. It is an abundant, multivalent non-metal. At normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8.