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1,2,4-TRICHLOROBENZENEICSC: 1049
November 2003
CAS #: 120-82-11,2,4-Trichlorobenzol
unsym-Trichlorobenzene
UN #: 2321
EINECS #: 204-428-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, powder, foam, carbon dioxide.   

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat. Burning sensation.  Use 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.  Wear 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 refer for medical attention. 
Ingestion Abdominal pain. Sore throat. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. If solid: sweep spilled substance into sealable containers. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Separated from strong oxidants, acids and food and feedstuffs. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
1,2,4-TRICHLOROBENZENE ICSC: 1049
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID OR WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

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

Formula: C6H3Cl3
Molecular mass: 181.5
Boiling point: 213°C
Melting point: 17°C
Relative density (water = 1): 1.5
Solubility in water, mg/l: 34.6
Vapour pressure, Pa at 25°C: 40
Relative vapour density (air = 1): 6.26
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.002
Flash point: 105°C c.c.
Auto-ignition temperature: 571°C
Explosive limits, vol% in air: 2.5-6.6 (at 150°C)
Octanol/water partition coefficient as log Pow: 3.98  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. 

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

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver. 


Occupational exposure limits
TLV: 5 ppm as STEL.
MAK: skin absorption (H); carcinogen category: 3B.
EU-OEL: 15.1 mg/m3, 2 ppm as TWA; 37.8 mg/m3, 5 ppm as STEL; (skin) 

ENVIRONMENT
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
  EC Classification
Symbol: Xn, N; R: 22-38-50/53; S: (2)-23-37/39-60-61 

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       Toxicological Abbreviations