Diethylene triamine (DETA) is a colorless, hygroscopic liquid with an ammonia-like odor, formula C4H13N3cap C sub 4 cap H sub 13 cap N sub 3?4?13?3. It is a strong, weak-base, water-soluble amine used primarily as a curing agent for epoxy resins, in chemical synthesis, and for manufacturing polyamide resins. It is corrosive, toxic by inhalation or skin contact, and poses significant health risks.