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2,4-DICHLOROTOLUENEICSC: 1727
March 2009
CAS #: 95-73-82,4-Dichloro-1-methylbenzene
Benzene, 2,4-dichloro-1-methyl-
Toluene, 2,4-dichloro-
UN #: 3082
EINECS #: 202-445-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Above 87°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 87°C use a closed system and ventilation.  Use carbon dioxide, powder, water spray.   

See Notes.   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes   Wear safety goggles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for inorganic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Remove vapour with fine water spray. 

According to UN GHS Criteria

WARNING
Combustible liquid
Causes mild skin irritation
Toxic to aquatic life 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from strong bases and strong oxidants. Cool. Keep in a well-ventilated room. Store in an area without drain or sewer access. 
PACKAGING
 
2,4-DICHLOROTOLUENE ICSC: 1727
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
Decomposes on heating. This produces carbon monoxide and vinyl chloride. Reacts violently with strong oxidants and strong bases. 

Formula: C7H6Cl2
Molecular mass: 161.0
Boiling point at 101.3kPa: 200°C
Melting point: -13.5°C
Density: 1.25 g/cm³
Solubility in water, g/100ml at 20°C: (very poor)
Vapour pressure, kPa at 50°C: 0.4
Relative vapour density (air = 1): 5.56
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02
Flash point: 87°C c.c.
Explosive limits, vol% in air: 1.9-4.5
Octanol/water partition coefficient as log Pow: 4.24  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
The substance is mildly irritating to the skin. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       2,4-Dichlorotoluene  (SIDS)