1,2,4-Trichlorobenzol
unsym-Trichlorobenzene
C6H3Cl3
Molecular mass: 181.5
ICSC # 1049
CAS # 120-82-1
RTECS # DC2100000
UN # 2321
EC # 602-087-00-6
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Cough.
Sore throat.
Burning sensation.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Dry skin.
Redness.
Roughness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Sore throat.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.)
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Separated from
strong oxidants,
acids,
food and feedstuffs
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Do not transport with food and feedstuffs.
Marine pollutant.
Xn symbol
N symbol
R: 22-38-50/53
S: 2-23-37/39-60-61
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS
LIQUID
OR
WHITE
CRYSTALS
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
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/m3 as STEL 5 ppm, 37.8 mg/m3 (skin); (EU 2003).
OSHA PEL: none
NIOSH REL: C 5 ppm (40 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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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 20°C; 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
.
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Physical
Properties
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Boiling point: 213°C
Melting point: 17°C
Relative density (water = 1): 1.5
Solubility in water: 34.6 mg/l
Vapour pressure, Pa at 25°C: 40
Relative vapour density (air = 1): 6.26
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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
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Environmental
Data
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The substance is toxic to aquatic organisms.
Bioaccumulation of this chemical may occur in fish.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61GT1-III
NFPA Code: H2; F1; R0;
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ADDITIONAL INFORMATION
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ICSC: 1049
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1,2,4-TRICHLOROBENZENE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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