Chemical

Products

Triethylene Tetramine

Cas Number

112-24-3 

Other Names

N,

N'-Bis(2-aminoethyl)ethane-1,

2-diamine; TETA;

Trien;

Trientine (INN);

Syprine

The formula

C6H18N4

Introduction

Triethylenetetramine, abbreviated TETA and trien and also called trientine (INN), is an organic compound with the formula[CH2NHCH2CH2NH2]2. This oily liquid is colorless but, like many amines, assumes a yellowish color due to impurities resulting from air-oxidation. It is soluble in polar solvents. The branched isomer tris(2-aminoethyl)amine and piperazine derivatives may also be present in commercial samples of TETA.

Physical and Chemical Properties
Molar mass 146.24 g·mol−1
Appearance Colorless liquid
Odor Fishy, ammoniacal
Density 982 mg mL−1
Melting point −34.6 °C; −30.4 °F; 238.5 K
Boiling point 266.6 °C; 511.8 °F; 539.7 K
Solubility in water Miscible
log P 1.985
Vapor pressure <1 Pa (at 20 °C)
Refractive index(nD) 1.496
Applications

Triphosgene is used as a reagent in organic synthesis and is a less hazardous substitute for phosgene for a variety of chemical transformations including to bond one carbonyl group to two alcohols, and to convert an amine group into isocyanate.