Hexamethylenediamine, solution

  • 1,6-Hexanediamine
  • 1,6-Diaminohexane
Formula
NH2(CH2)6NH2
Structure
Description
Solid is a colorless crystalline solid.
Uses
Chemical intermediate for nylon-type polyamide resins.

Registry Numbers and Inventories.
CAS
124-09-4
EC (EINECS/ELINCS)
204-679-6
EC Index Number
612-104-00-9
EC Class
Harmful; Irritant; Corrosive
R 21/22 34 37
S 22 26 36/37/39 45
RTECS
MO1180000
RTECS class
Reproductive Effector
UN (DOT)
1783
Merck
13,4713
Beilstein/Gmelin
1098307
Beilstein Reference
4-04-00-01320
Swiss Giftliste 1
G-1682
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H16N2
Formula mass
116.21
Melting point, °C
39 - 42
Boiling point, °C
205
Vapor pressure, mmHg
0.26 (25 C)
Vapor density (air=1)
4
Odor Threshold Odor threshold 0.0041 mg/m3
Density
0.66 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
1.5 cP @ 50 C
Surface tension
34.6 g/s2
pKa/pKb
3.30 (pKb)
Partition coefficient, pKow
0.04
Heat of fusion
40.2 kJ/mol
Heat of vaporization
44.1 kJ/mol
Heat of combustion
-2650 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Do not store in metal containers.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Ground and bond containers when transferring material. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Disposal code
3
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Acids, acid chlorides, acid anhydrides, carbon dioxide, strong oxidizers.
Decomposition
Carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
Flash Point,°C
85
Autoignition, °C
305
Upper exp. limit, %
7.6
Lower exp. limit, %
0.9
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Flammable solid. May polymerize explosively when involved in a fire. Contact with metals may evolve flammable hydrogen gas. Extinguishing media: 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. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure limit(s)
OEL-RUSSIA:STEL 0.1 mg/m3
Poison_Class
3
Exposure effects
Prolonged or repeated skin contact may cause dermatitis. May cause fetal effects.
   Ingestion
May cause liver damage. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. Exposure may cause anemia and other blood abnormalities. May be harmful if swallowed.
   Inhalation
May cause allergic respiratory reaction. May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. May cause effects similar to those described for ingestion.
   Skin
May be absorbed through the skin in harmful amounts. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause severe irritation and possible burns.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns. May cause conjunctivitis and corneal inflammation.

First aid
 
   Ingestion
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
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid. 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
1783
Response guide
Hazard class
8
USCG CHRIS Code
HMD
 
7 Aliphatic amines
HS Code
2921 22 00
 
Std. Transport #
4935645
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
S/P