Phosphorus pentasulfide is widely used in the production of lubricant additives, where it helps improve the performance and longevity of engine oils and industrial lubricants. It is also a key reagent in the synthesis of organophosphorus compounds, which are essential in the manufacture of pesticides, flame retardants, and plasticizers. In the pharmaceutical industry, it serves as a precursor for creating sulfur-containing drugs. Additionally, it is utilized in the production of safety matches, where it acts as a component in the match head to facilitate ignition. It is further employed in the chemical industry for producing surfactants and as an important component in lithium-ion battery production, enhancing charge storage efficiency. Its role in these applications highlights its versatility in industrial and chemical processes.