Diethylenetriamine

  • Aminoethylethanediamine
  • 3-Azapentane-1,5-diamine
  • bis(2-Aminoethyl)amine
  • 1,2’-Diaminodiethylamine
  • 2,2'-Iminodi(ethylamine)
  • Epicure T
Formula
(H2NCH2CH2)2NH
Structure
Description
Colorless to yellow liquid with a pungent, ammonia-like odor. Hygroscopic.
Uses
Chemical intermediate for reactive polyamide resins, fatty aminoamides, fatty imidazolines.

Registry Numbers and Inventories.
CAS
111-40-0
EC (EINECS/ELINCS)
203-865-4
EC Index Number
612-058-00-X
EC Class
Harmful; Corrosive; Sensitising
R 21/22 34 43
S 26 36/37/39 45
RTECS
IE1225000
RTECS class
Primary Irritant
UN (DOT)
2079
Beilstein/Gmelin
605314
Beilstein Reference
4-04-00-01238
Swiss Giftliste 1
G-1881
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H13N3
Formula mass
103.17
Melting point, °C
-39
Boiling point, °C
207
Vapor pressure, mmHg
0.37 (20 C)
Vapor density (air=1)
3.56
Saturation Concentration
300-500 ppm at 20 C
Evaporization number
0.01 (butyl acetate=1)
Odor Threshold Odor threshold 10 ppm
Critical temperature
436
Critical pressure
42.44
Density
0.9523 g/cm3
Solubility in water
Very soluble
Viscosity
0.0714 p @ 20C
Surface tension
43.8 g/s2 @ 25 C
Refractive index
1.4856 (20 C)
pKa/pKb
3.84 (pKb)
Heat of vaporization
63.44 kJ/mol
Heat of combustion
-3358 kJ/mol

Hazards and Protection.
Storage
Keep away from heat and flame. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep away from acids.
D2A D2B E
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Use water spray to dilute spill to a non-flammable mixture. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Provide ventilation. Do not get water inside containers.
Disposal code
5
Stability
Stable under normal temperatures and pressures.
Incompatibilities
This material is a strong alkaline. It reacts with carbon dioxide from the air; reacts violently with strong oxidants, acids, halogens, and reactive organic compounds; is corrosive toward aluminum, zinc, copper and its alloys; and causes spontaneous ignition with cellulose nitrate.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, amines.

Fire.
Flash Point,°C
102
Autoignition, °C
395
Upper exp. limit, %
11.6
Lower exp. limit, %
1.9
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray.
Fire potential
Slightly flammable. Combustion requires preheating.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Irritating vapors are generated when heated.
Health
3
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV: 1 ppm; 4.2 mg/m3 (as TWA) (skin) (ACGIH 1995-1996). NIOSH REL: TWA 1 ppm (4 mg/m3) skin
Poison_Class
3
Exposure effects
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. Repeated exposure may cause allergic respiratory reaction (asthma). Once acquired, sensitivity may be retained for many years, with possible cross-sensitization to other amines. Persons with pre-existing skin disorders or impaired respiratory function may be more susceptible to the effects of the substance.
   Ingestion
Corrosive. Swallowing can cause severe burns of the mouth, throat, and stomach. Can cause sore throat, vomiting, diarrhea.
   Inhalation
Inhalation can cause severe irritation of mucous membranes and upper respiratory tract. Symptoms may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting. High concentrations may cause lung damage. May cause allergic reaction in sensitive individuals.
   Skin
Corrosive. Symptoms of redness, pain, and severe burn can occur. May be absorbed through the skin with possible systemic effects. May cause allergic reaction in sensitive individuals.
   Eyes
Corrosive! Vapors are irritating and may cause damage to the eyes. Contact may cause severe burns and permanent eye damage.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2079
Response guide
Hazard class
8
Packing Group
II
 
USCG CHRIS Code
DET
 
7 Aliphatic amines
HS Code
2921 29 00
 
Std. Transport #
4935614
 
IMO Chemical Code
17
IMO Pollution Category
D
IMO Hazard code
S