Triethyl phosphate is widely used as a flame retardant in various materials, including plastics, resins, and textiles. It helps reduce the flammability of these products by releasing phosphoric acid when exposed to heat, which forms a protective char layer. Additionally, it serves as a solvent and plasticizer in the production of cellulose acetate and other polymers, enhancing their flexibility and durability. In the electronics industry, it is utilized as an electrolyte additive in lithium-ion batteries to improve their performance and safety. TEP is also employed in the synthesis of pesticides and pharmaceuticals as an intermediate or catalyst. Its ability to act as a stabilizer in hydraulic fluids and lubricants further extends its application in industrial machinery.