Tetraethylenepentamine

Tetraethylenepentamine (often abbreviated as TEPA) is a chemical compound with the formula (C2H8N)4. This organic compound is a colorless liquid although like many amines, samples are often yellowish. The compound is used in a variety of industrial applications.

Structure and properties

TEPA is a polyamine and a polyalcohol. It is a derivative of ethylenediamine, where four ethylene groups are added to the molecule. The molecule is flexible and can assume various shapes, but the linear form is the most stable.

Production

TEPA is produced by the reaction of ethylenediamine with aziridine, followed by hydrogenation. The reaction is highly exothermic and is carried out in the presence of a catalyst.

Applications

TEPA is used in a variety of applications. It is used as a cross-linking agent in the production of epoxy resins. It is also used as a chelating agent in the extraction of metal ions. In addition, it is used as a corrosion inhibitor in the oil and gas industry.

Safety

TEPA is a strong base and can cause burns if it comes into contact with the skin or eyes. It is also harmful if swallowed or inhaled. Proper safety measures should be taken when handling this chemical.

See also

• Ethylenediamine
• Polyamine
• Chelating agent