Diethylamine is widely used in the synthesis of agrochemicals and pharmaceuticals, serving as a building block for herbicides, insecticides, and active drug ingredients. It functions as an intermediate in the production of rubber additives and corrosion inhibitors, enhancing the performance and longevity of industrial materials. In organic synthesis, diethylamine acts as a base or nucleophile in various alkylation and condensation reactions. It is also employed in the manufacture of dyes and surfactants, contributing to improved solubility and reactivity in formulations. Due to its volatility and basic nature, it is occasionally used in gas treating processes to remove acidic impurities such as carbon dioxide or hydrogen sulfide.