Used in flame retardants to reduce flammability of plastics, textiles, and rubber by releasing sulfur compounds that inhibit combustion.

Common in safety matches, where it acts as a sensitive ignition compound in match heads.

Employed in pyrotechnics for producing deep red colors and glitter effects in fireworks.

Found in some semiconductor materials and infrared detectors due to its electronic properties.

Used in certain types of pigments for paints, coatings, printing, and high-temperature applications, providing stable black, gray, or red shades.

Applied in the glass and ceramics industry to control foaming, clarify, or adjust product colors.