6-Ethyl-o-toluidine

  • Methyl ethyl aniline
  • 2-Ethyl-6-methylaniline
  • 2-Methyl-6-ethylaniline
  • 6-Ethyl-2-toluidine
  • Benzenamine, 2-ethyl-6-methyl-
Formula
C9H13N
Structure
Description
A clear liquid with a pungent odor.
Uses
This is a high volume chemical with production exceeding 1 million pounds annually in the U.S.

Registry Numbers and Inventories.
CAS
24549-06-2
EC (EINECS/ELINCS)
246-309-6
EC Class
harmful
R 20/21/22
S 23 24/25 28A 37 45
RTECS
BY5600000
RTECS class
Mutagen
UN (DOT)
2754
Beilstein/Gmelin
2079468
Beilstein Reference
4-12-00-02638
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C9H13N
Formula mass
135.21
Melting point, °C
-33.0
Boiling point, °C
231
Vapor pressure, mmHg
0.06
Vapor density (air=1)
4.66
Critical temperature
464
Critical pressure
33.2
Density
0.969 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
8.70 cp (98.9 C)
Refractive index
1.5525 (20 C)
pKa/pKb
4.22 (pKb)
Partition coefficient, pKow
2.62

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
B3 D2B
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and 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. Avoid ingestion and inhalation. 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. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen, ammonia.

Fire.
Flash Point,°C
89
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. Extinguishing media: Use water spray to cool fire-exposed containers. Use agent most appropriate to extinguish fire. 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
Contain poisonous oxides of nitrogen and carbon dioxide.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
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.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. 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. Overexposure may cause methemoglobinemia.
   Inhalation
May cause respiratory tract irritation. May cause liver and kidney damage. The toxicological properties of this substance have not been fully investigated. 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
Absorption into the body may cause cyanosis. May cause irritation and dermatitis. May cause cyanosis of the extremities.
   Eyes
May cause eye irritation. May cause chemical conjunctivitis and corneal damage.

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. DO NOT use mouth-to-mouth respiration.
   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
2754
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
MEN
 
9 Aromatic amines
HS Code
2921 49 80
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
S/P