280-57-9

Name	Triethylenediamine
CAS	280-57-9
EINECS(EC#)	205-999-9
Molecular Formula	C6H12N2
MDL Number	MFCD00006689
Molecular Weight	112.17
MOL File	280-57-9.mol

Chemical Properties

Appearance	white crystalline powder
Melting point	156-159 °C(lit.)
Boiling point	174 °C
density	1.02 g/mL
vapor pressure	2.9 mm Hg ( 50 °C)
refractive index	n20/D 1.4634(lit.)
Fp	198 °F
storage temp.	2-8°C
solubility	400g/l
form	Hygroscopic Crystals
pka	3.0, 8.7(at 25℃)
color	White to pale yellow
Stability:	Stable, but very hygroscopic. Incompatible with strong oxidizing agents, strong acids. Highly flammable.
Water Solubility	46 g/100 mL (26 ºC)
Sensitive	Hygroscopic
Merck	14,9669
BRN	103618
LogP	-0.49 at 20℃
CAS DataBase Reference	280-57-9(CAS DataBase Reference)
NIST Chemistry Reference	Triethylenediamine(280-57-9)
EPA Substance Registry System	280-57-9(EPA Substance)

Safety Data

Hazard Codes	Xn,F
Risk Statements	R22:Harmful if swallowed. R36/37/38:Irritating to eyes, respiratory system and skin . R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment . R41:Risk of serious damage to eyes. R36/38:Irritating to eyes and skin . R11:Highly Flammable. less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S60:This material and/or its container must be disposed of as hazardous waste . S37/39:Wear suitable gloves and eye/face protection . S3:Keep in a cool place . S16:Keep away from sources of ignition-No smoking . S36/37:Wear suitable protective clothing and gloves . less more
RIDADR	UN 1325 4.1/PG 2
WGK Germany	1
RTECS	HM0354200
F	3
Autoignition Temperature	350 °C
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	29335920
Hazardous Substances Data	280-57-9(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 700 mg/kg less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

white crystalline powder

Uses

An anti-fade reagent shown to scavenge free-radicals due to flurochrome excitation.

Definition

ChEBI: Triethylenediamine is an organic heterobicylic compound that is piperazine with an ethane-1,2-diyl group forming a bridge between N1 and N4. It is typically used as a catalyst in polymerization reactions. It has a role as a catalyst, a reagent and an antioxidant. It is a bridged compound, a tertiary amino compound, a saturated organic heterobicyclic parent and a diamine.

Preparation

Triethylenediamine can be produced from ethylenediamine or ethanolamine, diethanolamine, or diethylenetriamine with a variety of different catalysts.

Reactions

Triethylenediamine reacts virtually quantitatively with bromine to give a 1/1 adduct. With alkyl halides it forms quaternary salts, even in nonpolar solvents. Apart from its highly nucleophilic nature, triethylenediamine exhibits catalytic activity in base-catalyzed reactions.

General Description

Dabco^?33-LV (Db) is a gelling catalyst and a bidentate ligand that forms a self-assembled monolayer (SAM) on a variety of substrates. It functionalizes the surface and immobilizes the surface atoms.

Hazard

Skin irritant.

Flammability and Explosibility

Flammable

Purification Methods

DABCO crystallises from 95% EtOH, pet ether or MeOH/diethyl ether (1:1). Dry it under vacuum over CaCl2 and BaO. It can be sublimed in vacuo, and readily at room temperature. It has also been purified by removal of water during azeotropic distillation of a *benzene solution. It is then recrystallised twice from anhydrous diethyl ether under argon, and stored under argon [Blackstock et al. J Org Chem 52 1451 1987]. [Beilstein 23/3 V 487.]

Material Safety Data Sheet(MSDS)

Spectrum Detail

Well-known Reagent Company Product Information

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