Triethylene diamine

  • 2,2'-Diazabicyclo[2.2.2]octane
  • Dabco
  • Quinuclidine
  • 1,4-Diazabicyclo[2.2.2]octane
Formula
C6H12N2
Structure
Description
White crystals with a sharp, ammonia-like odor. Sublimes readily at room temperature, hygroscopic.
Uses
Catalyst in making urethane foams.

Registry Numbers and Inventories.
CAS
280-57-9
EC (EINECS/ELINCS)
205-999-9
EC Class
harmful, irritant, dangerous for the environment
R 22 34
S 26 36/37/39 45
RTECS
HM0354200
RTECS class
Primary Irritant
UN (DOT)
3263
Merck
12,9801
Beilstein/Gmelin
103618
Beilstein Reference
5-23-03-00487
Swiss Giftliste 1
G-9826
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H12N2
Formula mass
112.18
Boiling point, °C
174
Vapor pressure, mmHg
1.2 (25 C)
Saturation Concentration
600 ppm at 20 C
Density
1.14 g/cm3 (20 C)
Solubility in water
460 g/L
pKa/pKb
5.30 (pKb)
Partition coefficient, pKow
-0.85
Heat of vaporization
41.0 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
D1B
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
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 protective 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
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong acids. Forms an explosive complex with hydrogen peroxide. Mixtures with carbon auto-ignite at 230C. Very exothermic reaction with cellulose nitrate.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
62.2
Autoignition, °C
350
Upper exp. limit, %
9.2
Lower exp. limit, %
1.2
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Inhalation of dust may cause respiratory tract irritation.
   Skin
Causes severe skin irritation and possible burns.
   Eyes
Causes severe eye irritation and possible burns.

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 not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and 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
3263
Response guide
Hazard class
8
Packing Group
I; II; III
 
7. Aliphatic amines
HS Code
2933 59 20