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1,2,4,5-TETRACHLOROBENZENE ICSC: 0676
Date of Peer Review: November 2003

Benzene tetrachloride
s-Tetrachlorobenzene
CAS # 95-94-3 C6H2Cl4
RTECS # DB9450000 Molecular mass: 215.9
UN #
EC #
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.
Powder, carbon dioxide.
EXPLOSION Risk of fire and explosion on contact with oxidants.


EXPOSURE


Inhalation Cough.
Local exhaust.
Fresh air, rest. Refer for medical attention.
Skin
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles.)
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H 1; F 1; R 0;
Separated from strong oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK


1,2,4,5-TETRACHLOROBENZENE ICSC: 0676
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive fumes including hydrogen chloride. Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver, resulting in liver impairment.
PHYSICAL PROPERTIES
Boiling point: 243-246C
Melting point: 139-140C
Density: 1.83 g/cm
Solubility in water: 2.16 mg/l at 25 C
Vapour pressure, Pa at 25C: 0.7
Relative vapour density (air = 1): 7.4
Flash point: 155C c.c.
Octanol/water partition coefficient as log Pow: 4.9
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish.
NOTES
Health effects of exposure to the substance have not been investigated adequately.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999