1,2,4,5-TETRACHLOROBENZENE (ICSC)

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 Š 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 20°C 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: 243-246°C
Melting point: 139-140°C
Density: 1.83 g/cmł
Solubility in water: 2.16 mg/l at 25 °C
Vapour pressure, Pa at 25°C: 0.7
Relative vapour density (air = 1): 7.4

Flash point: 155°C 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

Š IPCS, CEC 1999

    See Also:
       Toxicological Abbreviations