Used as a sulfurizing agent in the production of extreme pressure (EP) additives for lubricating oils. It enhances the load-carrying capacity and anti-wear properties of greases and drilling fluids, especially in high-stress mechanical systems like gear oils and metalworking fluids. Also employed in rubber vulcanization to improve cross-linking, resulting in better heat and abrasion resistance in the final rubber products. Its thermal stability makes it suitable for high-temperature industrial applications.