Dihexylenetriamine

  • bis(Hexamethylene)triamine
  • N-(6-Aminohexyl)-1,6-hexanediamine
  • Bis(6-aminohexamethyl)amine
  • 7-Aza-1,13-tridecanediamine
  • 1,13-Diamino-7-azatridecane
  • 1,6-Hexanediamine, N-(6-aminohexyl)-
Formula
C12H29N3
Structure
Description
A colorless crystalline or flaked solid.
Uses
Used as a chemical intermediate in the synthesis of polyamide resins, reactive.

Registry Numbers and Inventories.
CAS
143-23-7
EC (EINECS/ELINCS)
205-593-1
R 21/22 34 52
S 28 36/37/39 45
RTECS
MO1186250
RTECS class
Other
UN (DOT)
3259
Beilstein/Gmelin
2061497
Swiss Giftliste 1
G-8788
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H29N3
Formula mass
215.44
Melting point, °C
34 - 35
Boiling point, °C
333
Vapor pressure, mmHg
0.00014 (25 C)
Density
0.88 g/cm3 (20 C)
Solubility in water
Very soluble
pKa/pKb
2.83 (pKb)
Partition coefficient, pKow
-1.22
Heat of vaporization
57.6 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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 or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong acids, strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
121
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. Extinguishing media: Use agent most appropriate to extinguish fire.
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
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
   Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause severe respiratory tract irritation and possible burns. Inhalation of dust may cause respiratory tract irritation.
   Skin
May cause severe skin irritation and burns.
   Eyes
Dust may cause mechanical irritation. Contact with eyes may cause severe irritation, and possible eye 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 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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
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
3259
Response guide
Hazard class
8
Packing Group
I; II; III
 
7. Aliphatic amines
Std. Transport #
4935613