N-Ethylaniline

  • Ethylaniline
  • Ethylphenylamine
  • N-Ethylbenzenamine
Formula
C6H5NHC2H5
Structure
Description
Clear, colorless liquid, rapidly becomes brown on exposure to light and air, aniline-like odor.
Uses
Organic synthesis.

Registry Numbers and Inventories.
CAS
103-69-5
EC (EINECS/ELINCS)
203-135-5
EC Index Number
612-053-00-2
EC Class
Toxic; Danger of cumulative effects
R 23/24/25 33
S 28 37 45
RTECS
BX9780000
RTECS class
Other
UN (DOT)
2272
Merck
13,3800
Beilstein/Gmelin
507468
Beilstein Reference
4-12-00-00250
Swiss Giftliste 1
G-1162
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H11N
Formula mass
121.18
Melting point, °C
-64
Boiling point, °C
204.7
Vapor pressure, mmHg
0.2 (25 C)
Vapor density (air=1)
4.18
Saturation Concentration
3948 ppm (0.39%) at 20 C (calculated)
Critical temperature
425
Critical pressure
35.3
Density
0.9777 g/cm3 (0 C)
Solubility in water
< 1 mg/ml
Viscosity
1.50 cp (35 C)
Surface tension
4.579x10-2 n.m @ 209.65 K
Refractive index
1.5559 (20 C)
pKa/pKb
8.88 (pKb)
Partition coefficient, pKow
2.16
Heat of vaporization
58.27 kJ/mol
Heat of combustion
-4728 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store protected from light. Store under an inert atmosphere.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Store protected from light. Handle under an inert atmosphere. Store protected from air. 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 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. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Use a spark-proof tool. Place under an inert atmosphere.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Air.
Decomposition
Nitrogen oxides, carbon monoxide, oxides of nitrogen, irritating and toxic fumes and gases, carbon dioxide, ammonia.

Fire.
Flash Point,°C
92
Autoignition, °C
479
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. 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. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Combustible Liquid. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
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
3
 
Flammability
4
 
 
Reactivity
0
 

Health.
Poison_Class
2
Exposure effects
May cause liver and kidney damage. May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis, rapid heart rate, unconsciousness and possible death. Effects may be delayed. There is a danger of cumulative effects.
   Ingestion
Symptoms may include: headache, excitement, fatigue, nausea, vomiting, stupor, and coma. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood. Overexposure may cause methemoglobinemia.
   Inhalation
May cause liver and kidney damage. May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. May cause effects similar to those described for ingestion. Aspiration may lead to pulmonary edema. 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. Inhalation at high concentrations may cause CNS depression and asphixiation.
   Skin
Exposure may cause irritation and possible burns. Absorption into the body may cause cyanosis. May cause cyanosis of the extremities.
   Eyes
Causes eye burns. May cause chemical conjunctivitis and corneal 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
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. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   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
2272
Response guide
Hazard class
6.1
Packing Group
III
 
9. Aromatic amines
HS Code
2921 42 90
 
Std. Transport #
4925127