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120-82-1

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Identification

Name
1,2,4-Trichlorobenzene
CAS
120-82-1
Synonyms
TRICHLOROBENZENE
UNSYM-TRICHLOROBENZENE
1,2,4-trichloro-benzen
1,2,4-trichlorobenzene(tcb)
1,2,4-Trichlorobenzol
1,2,5-Trichlorobenzene
1,3,4-Trichlorobenzene
ai3-07775
as-trichlorobenzene
Benzene,1,2,4-trichloro-
Hipochem GM
Hostetex l-pec
hostetexl-pec
Trojchlorobenzen
trojchlorobenzen(polish)
Trichlorobenzene, 1,2,4-? Trichlorobenzol
TRICHLOROBENZENE124-,,
TRICHLOROBENZEN MIXTURE
1,2,4-TRICHLOROBENZENE SINGLE COMPONENT STANDARD FOR EPA
1,2,4-TRICHLOROBENZENE PESTANAL
EINECS(EC#)
204-428-0
Molecular Formula
C6H3Cl3
MDL Number
MFCD00000547
Molecular Weight
181.45
MOL File
120-82-1.mol

Chemical Properties

Appearance
1,2,4-Trichlorobenzene is a low-melting solid or liquid with a pleasant, aromatic odor. The Odor Threshold is 1.4 ppm.
Appearance
Colorless, stable liquid; odor similar to that of o-dichlorobenzene. Miscible with most organic solvents and oils; insoluble in water. Combustible.
Appearance
colourless liquid
mp 
16 °C(lit.)

bp 
214 °C(lit.)

density 
1.454 g/mL at 25 °C(lit.)

vapor density 
>6 (vs air)

vapor pressure 
1 mm Hg ( 40 °C)

refractive index 
n20/D 1.571(lit.)

Fp 
>230 °F

storage temp. 
0-6°C
Stability:
Stable. Incompatible with strong oxidizing agents. Combustible.
Water Solubility 
INSOLUBLE
Detection Methods
GC,NMR
Merck 
14,9631
CAS DataBase Reference
120-82-1(CAS DataBase Reference)
NIST Chemistry Reference
Benzene, 1,2,4-trichloro-(120-82-1)
EPA Substance Registry System
120-82-1(EPA Substance)

Safety Data

Hazard Codes 
Xn,N,Xi,T,F
Risk Statements 
R22:Harmful if swallowed.
R38:Irritating to the skin.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable.
Safety Statements 
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S37/39:Wear suitable gloves and eye/face protection .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S16:Keep away from sources of ignition-No smoking .
RIDADR 
UN 2321 6.1/PG 3

WGK Germany 
3

RTECS 
DC2100000

Hazard Note 
Irritant
HazardClass 
6.1
PackingGroup 
III
HS Code 
29036990
Safety Profile
Poison by ingestion. Moderately toxic by intraperitoneal route. An experimental teratogen. Experimental reproductive effects. Mutation data reported. A slan irritant. Combustible when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use water, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORINATED HYDROCARBONS, AROMATIC.
Hazardous Substances Data
120-82-1(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

General Description
Colorless liquid or white solid with a sharp chlorobenzene odor. Melting point 16.95°C (62.5°F) .
Reactivity Profile
1,2,4-TRICHLOROBENZENE(120-82-1) can react vigorously with oxidizing materials . Yields hydrogen chloride and phosgene when heated to decomposition [USCG, 1999].
Air & Water Reactions
Insoluble in water.
Health Hazard
Exposures to high concentrations via inhalation are potentially hazardous to the lungs, kidneys and liver. Prolonged or repeated exposures or short exposure to high concentrations via inhalation are potentially hazardous to the lungs, kidneys and liver. Prolonged or repeated exposure to the eyes is likely to result in moderate pain and transient irritation. Prolonged or repeated contact with the skin may result in moderate irritation and possible systemic effects. Ingestion: May cause kidney and liver damage.
Potential Exposure
1,2,4-Trichlorobenzene is used as a dye carrier, herbicide intermediate; a heat transfer medium; a dielectric fluid in transformers; a degreaser; a lubricant; as an industrial chemical; solvent, emulsifier, and as a potential insecticide against termites. The other trichlorobenzene isomers are not used in any quantity.
First aid
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water. Do not make an unconscious person vomit.
Shipping
UN2321 Trichlorobenzenes, liquid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
Incompatibilities
Reacts violently with oxidants, acids, acid fumes; steam.
Waste Disposal
Incineration, preferably after mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove the halo acids produced.

Material Safety Data Sheet(MSDS)

Spectrum Detail

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