N,N-Dimethyl-p-toluidine

  • N,N,4-Trimethylaniline
  • Benzenamine, N,N,4-trimethyl
  • N,N-Dimethyltoluidine
Formula
C9H13N
Structure
Description
A clear colorless liquid with an aromatic odor.

Registry Numbers and Inventories.
CAS
99-97-8
EC (EINECS/ELINCS)
202-805-4
EC Index Number
612-056-00-9
EC Class
Toxic; Danger of cumulative effects; Dangerous for the Environment
R 23/24/25 33 52/53
S 28 36/37 45 61
RTECS
XU5803000
RTECS class
Mutagen
UN (DOT)
2810
Beilstein/Gmelin
774409
Beilstein Reference
4-12-00-01874
Swiss Giftliste 1
G-1427
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C9H13N
Formula mass
135.21
Melting point, °C
-15
Boiling point, °C
211
Vapor pressure, mmHg
0.75 (20 C)
Vapor density (air=1)
4.7
Evaporization number
0.5 (butyl acetate=1)
Density
0.9 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
0.864 cp (55 C)
Refractive index
1.5366 (20 C)

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Use with adequate ventilation. 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
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. 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. Remove all sources of ignition.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
76
Autoignition, °C
425
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. Combustible Liquid. Containers may explode when heated. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
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
Fire may produce irritating, corrosive and/or toxic gases.
Health
0
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
2
Exposure effects
There is a danger of cumulative effects.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. May be harmful if inhaled.
   Skin
May cause skin irritation. May be harmful if absorbed through the skin.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. 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 immediately.

Transport.
UN number
2810
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
9. Aromatic amines
HS Code
2921 43 00
 
Std. Transport #
4921716