N,N-Diethylaniline

  • Diethyl aniline
  • N,N-Diethylbenzeneamine
Formula
C10H15N
Structure
Description
A yellow oily liquid with a fishlike odor.
Uses
Used in synth of pharmaceuticals.

Registry Numbers and Inventories.
CAS
91-66-7
EC (EINECS/ELINCS)
202-088-8
EC Index Number
612-054-00-8
EC Class
Toxic; Danger of cumulative effects; Dangerous for the Environment
R 23/24/25 33 51/53
S 28 37 45 61
RTECS
BX3400000
RTECS class
Mutagen
UN (DOT)
2432
Merck
13,3140
Beilstein/Gmelin
742483
Beilstein Reference
4-12-00-00252
Swiss Giftliste 1
G-1493
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H15N
Formula mass
149.24
Melting point, °C
-38.8
Boiling point, °C
215.5
Vapor pressure, mmHg
1.6 (50 C)
Critical temperature
439
Density
0.9348 g/cm3 (20 C)
Solubility in water
14 g/L
Viscosity
1.95 cp (25 C)
Surface tension
34.17 g/s2 (20 C)
Refractive index
1.5394 (20 C)
pKa/pKb
7.43 (pKb)
Partition coefficient, pKow
3.31
Heat of fusion
8.50 kJ/mol
Heat of vaporization
56.52 kJ/mol
Heat of combustion
-6067 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. 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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
79
Autoignition, °C
332
Upper exp. limit, %
9.5
Lower exp. limit, %
1.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Emits toxic fumes under fire conditions.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis, rapid heart rate, unconsciousness and possible death.
   Ingestion
May cause irritation of the digestive tract. May cause methemoglobinemia, cyanosis, convulsions, and death. The toxicological properties of this substance have not been fully investigated. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown blood. Inhalation of aniline causes anoxia due to the formation of methemoglobinemia.
   Skin
May cause skin irritation. The toxicological properties of this material have not been fully investigated.
   Eyes
May cause eye irritation. The toxicological properties of this material have not been fully investigated.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2432
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
DMN
 
9 Aromatic amines
HS Code
2921 42 90
 
Std. Transport #
4915142