Diethylenetriamine

Diethylenetriamine
Names
	Preferred IUPAC name N1-(2-Aminoethyl)ethane-1,2-diamine
	Other names N-(2-Aminoethyl)-1,2-ethanediamine; bis(2-Aminoethyl)amine; DETA; 2,2'-Diaminodiethylamine
Identifiers
CAS Number	111-40-0 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	605314
ChEBI	CHEBI:30629 ;
ChEMBL	ChEMBL303429 ;
ChemSpider	13835401 ;
ECHA InfoCard	100.003.515
EC Number	203-865-4;
Gmelin Reference	2392
MeSH	diethylenetriamine
PubChem CID	8111;
RTECS number	IE1225000;
UNII	03K6SX4V2J ;
UN number	2079
CompTox Dashboard (EPA)	DTXSID2025050 ;
	InChI InChI=1S/C4H13N3/c5-1-3-7-4-2-6/h7H,1-6H2 Key: RPNUMPOLZDHAAY-UHFFFAOYSA-N ;
	SMILES NCCNCCN;
Properties
Chemical formula	C4H13N3
Molar mass	103.169 g·mol−1
Appearance	Colourless liquid
Odor	Ammoniacal
Density	955 mg mL−1
Melting point	−39.00 °C; −38.20 °F; 234.15 K
Boiling point	204.1 °C; 399.3 °F; 477.2 K
Solubility in water	miscible
log P	−1.73
Vapor pressure	10 Pa (at 20 °C)
Refractive index (nD)	1.484
Thermochemistry
Heat capacity (C)	254 J K−1 mol−1 (at 40 °C)
Std enthalpy of; formation (ΔfH⦵298)	−65.7–−64.7 kJ mol−1
Std enthalpy of; combustion (ΔcH⦵298)	−3367.2–−3366.2 kJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H314, H317
Precautionary statements	P280, P305+P351+P338, P310
Flash point	102 °C (216 °F; 375 K)
Autoignition; temperature	358 °C (676 °F; 631 K)
Explosive limits	2–6.7%
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	TWA 1 ppm (4 mg/m3)
IDLH (Immediate danger)	N.D.
Related compounds
Related amines	Dimethylamine; Trimethylamine; N-Nitrosodimethylamine; Diethylamine; Triethylamine; Diisopropylamine; Dimethylaminopropylamine; N,N-Diisopropylethylamine; Triisopropylamine; Tris(2-aminoethyl)amine; Mechlorethamine; HN1 (nitrogen mustard); HN3 (nitrogen mustard);
Related compounds	Unsymmetrical dimethylhydrazine; Biguanide; Dithiobiuret; Agmatine;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diethylenetriamine (abbreviated Dien or DETA) and also known as 2,2’-Iminodi(ethylamine)) is an organic compound with the formula HN(CH₂CH₂NH₂)₂. This colourless hygroscopic liquid is soluble in water and polar organic solvents, but not simple hydrocarbons. Diethylenetriamine is structural analogue of diethylene glycol. Its chemical properties resemble those for ethylene diamine, and it has similar uses. It is a weak base and its aqueous solution is alkaline. DETA is a byproduct of the production of ethylenediamine from ethylene dichloride.

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