Used as a flotation agent in the mining industry to separate sulfide ores from gangue minerals. It enhances the recovery of metals like copper, lead, and zinc by selectively promoting the hydrophobicity of sulfide particles during froth flotation. Also serves as an intermediate in organic synthesis, particularly in the preparation of sulfur-containing compounds. Occasionally employed in research settings for its ability to modify surface properties or act as a sulfur donor in catalytic reactions.