2,4,5-Trichlorotoluene

  • 1-Methyl-2,4,5-trichlorobenzene
  • Benzene, 1,2,4-trichloro-5-methyl
Formula
C7H5Cl3
Structure
Description
White solid.

Registry Numbers and Inventories.
CAS
6639-30-1
EC (EINECS/ELINCS)
229-644-2
UN (DOT)
2238
Beilstein/Gmelin
2082818
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
80-83
Boiling point, °C
229
Vapor pressure, mmHg
0.06 (25 C)
Solubility in water
1.38 mg/L (15 C)
Partition coefficient, pKow
4.28
Heat of vaporization
45.6 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Incompatible with strong oxidizers.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Flash Point,°C
149
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
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
   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
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.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.

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