Diethylenetriamine (DETA) is a colorless, hygroscopic organic compound belonging to the ethylene amine family. With the molecular formula C₄H₁₃N₃, DETA is composed of three amine groups, making it a triamine. This unique structure gives it high reactivity, enabling its use in a wide range of applications across chemical, pharmaceutical, textile, and oilfield industries.

DETA is primarily produced through the reaction of ethylene dichloride with ammonia, often alongside other ethyleneamines such as ethylenediamine (EDA) and triethylenetetramine (TETA). Among these, DETA stands out for its balance of molecular weight, functionality, and versatility.

One of the most prominent uses of Diethylenetriamine is as a curing agent in epoxy resins. DETA reacts with epoxy groups to create strong, heat- and chemical-resistant thermoset polymers. These cured epoxy systems are widely used in coatings, adhesives, composites, and electrical encapsulation, especially in the construction and automotive sectors.

In the agriculture industry, DETA is used in the production of chelating agents such as ethylenediaminetetraacetic acid (EDTA). These compounds bind with metal ions, enhancing nutrient availability in fertilizers and stabilizing micronutrients in soil and plant applications.

DETA also plays a role in the oil and gas sector, where it serves as an intermediate for corrosion inhibitors, scale preventatives, and fuel additives. Its ability to bond with metal ions and form stable complexes helps protect pipelines and processing equipment in harsh environments, particularly in offshore and deep-sea drilling operations.

In textile and paper industries, DETA is used in fabric softeners, wet-strength resins, and paper additives. It contributes to improved processing performance, end-product durability, and softness, which are essential in high-quality consumer products.

The water treatment industry utilizes DETA in formulations designed to remove metal contaminants from wastewater streams. Its strong chelating properties make it ideal for cleaning systems in industrial plants, reducing environmental impact and improving water reuse efficiency.

DETA is also a vital building block in the synthesis of pharmaceuticals and agrochemicals, where its reactive amino groups allow for further chemical modification and incorporation into complex molecular structures.

As demand for high-performance chemicals continues to grow, the global Diethylenetriamine market is expected to expand steadily, especially in Asia-Pacific and North America. Sustainability trends are prompting manufacturers to develop cleaner production processes and reduce hazardous byproducts.