2,3,6-Trichlorotoluene

  • 1,2,4-Trichloro-3-methylbenzene
  • 1-Methyl-2,3,6-trichlorobenzene
Formula
C7H5Cl3
Structure

Registry Numbers and Inventories.
CAS
2077-46-5
EC (EINECS/ELINCS)
218-202-4
RTECS
XT9300000
RTECS class
Other
UN (DOT)
2238
Beilstein/Gmelin
2327397
Beilstein Reference
4-05-00-00819
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H5Cl3
Formula mass
195.47
Melting point, °C
46
Boiling point, °C
236 - 240
Vapor pressure, mmHg
0.07 (25 C)
Solubility in water
Insoluble
Partition coefficient, pKow
4.28
Heat of vaporization
45.4 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear protective gloves and clothing and safety goggles.
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
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Incompatible with strong oxidizers.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Flash Point,°C
147
Fire fighting
Use of water spray when fighting fire may be inefficient. Small Fires: Dry chemical, carbon dioxide, water spray or regular foam. Large Fires: Water spray, fog or regular foam. Do not use straight streams.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Vapors may cause dizziness or suffocation. May cause toxic effects. May irritate or burn.
   Skin
May irritate or burn. May cause toxic effects if absorbed through the skin.
   Eyes
See Skin.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with 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
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2238
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
CHI
 
36 Halogenated hydrocarbons
IMO Chemical Code
17
IMO Pollution Category
A
IMO Hazard code
S/P