Trioctylamine is widely used as a solvent and extractant in various industrial processes. It plays a key role in the extraction of metals, particularly in the separation and purification of rare earth elements, uranium, and other transition metals. In the pharmaceutical industry, it is utilized as an intermediate in the synthesis of certain drugs and active pharmaceutical ingredients. Additionally, trioctylamine is employed in the production of corrosion inhibitors and surfactants, which are essential in manufacturing and maintenance applications. Its ability to act as a phase transfer catalyst also makes it valuable in organic synthesis, facilitating reactions between compounds in different phases.