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1,2,4-TRICHLOROBENZENE ICSC: 1049
Date of Peer Review: November 2003

1,2,4-Trichlorobenzol
unsym-Trichlorobenzene
CAS # 120-82-1 C6H3Cl3
RTECS # DC2100000 Molecular mass: 181.5
UN # 2321
EC # 602-087-00-6
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, water spray, foam, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough. Sore throat. Burning sensation.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Dry skin. Redness. Roughness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Sore throat. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Sweep spilled substance into sealable containers, if solid. Do NOT let this chemical enter the environment. (Extra personal protection: filter respirator for organic gases and vapours.)
Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
Symbol: Xn, N
R: 22-38-50/53
S: (2-)-23-37/39-60-61
UN Classification
UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61GT1-III
NFPA Code: H2; F1; R0;
Separated from strong oxidants, acids, food and feedstuffs.
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-TRICHLOROBENZENE ICSC: 1049
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID OR WHITE CRYSTALS, WITH CHARACTERISTIC ODOUR.

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

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm; (Ceiling value); (ACGIH 2003).
EU OEL: as TWA 2 ppm, 15.1 mg/m; as STEL 5 ppm, 37.8 mg/m; (skin); (EU 2003).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20C; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin. The substance may have effects on the liver.
PHYSICAL PROPERTIES
Boiling point: 213C
Melting point: 17C
Relative density (water = 1): 1.5
Solubility in water: 34.6 mg/l
Vapour pressure, Pa at 25C: 40
Relative vapour density (air = 1): 6.26
Relative density of the vapour/air-mixture at 20C (air = 1): 1.002
Flash point: 105C c.c.
Auto-ignition temperature: 571C
Explosive limits, vol% in air: 2.5-6.6 (at 150C)
Octanol/water partition coefficient as log Pow: 3.98
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish.
NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure. Also consult ICSC0344 1,3,5-Trichlorobenzene, and ICSC1222 1,2,3-Trichlorobenzene.
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
See Also:
        1,2,3-Trichlorobenzene (CHEMINFO)
        1,2,3-Trichlorobenzene (ICSC)
        1,3,5-Trichlorobenzene (ICSC)