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1,3-DICHLOROBENZENE
ICSC: 1095
Peer-Review Status: 10.04.2000 Validated
m-Dichlorobenzene
m-Phenylene dichloride 
CAS #: 541-73-1 RTECS #: CZ4499000
UN #: 2810
EC #: 602-067-00-7
EINECS #: 208-792-1
    Formula: C6H4Cl2
Molecular mass: 147.00

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Above 63°C explosive vapour/air mixtures may be formed.  Above 63°C use a closed system and ventilation.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Drowsiness. Nausea. Sore throat. Vomiting. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation. Diarrhoea. Nausea. Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: Xn, N; R: 22-51/53; S: (2)-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Provision to contain effluent from fire extinguishing. Separated from strong oxidants, aluminium and food and feedstuffs. Well closed. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
Decomposes on burning. This produces toxic fumes including hydrogen chloride. Reacts with strong oxidants. Reacts violently with aluminium. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: 2 ppm, 12 mg/m³; Peak limitation category: II(2); Pregnancy risk group: C; (DFG 2008). 

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

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 short-term exposure
The vapour is irritating to the eyes, skin and respiratory tract. See Notes. 

Effects of long-term or repeated exposure
The substance may have effects on the kidneys and liver. See Notes. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 173°C
Melting point: -24.8°C
Relative density (water = 1): 1.288
Solubility in water: none
Vapour pressure, kPa at 25°C: 0.286
Relative vapour density (air = 1): 5.1
Flash point: 63°C
Octanol/water partition coefficient as log Pow: 3.53  
The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. 

NOTES
Data on the toxicity of m-dichlorobenzene are limited.
Also consult ICSC #0037 (p-Dichlorobenzene) and #1066 (o-Dichlorobenzene).
Card has been partially updated in November 2008: see Occupational Exposure Limits, Storage. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations