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296104

Sigma-Aldrich

1,2,4-Trichlorobenzene

anhydrous, ≥99%

Synonym(s):

1,2,4-TCB

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About This Item

Empirical Formula (Hill Notation):
C6H3Cl3
CAS Number:
120-82-1
Molecular Weight:
181.45
Beilstein:
956819
EC Number:
204-428-0
MDL number:
MFCD00000547
UNSPSC Code:
12352101
PubChem Substance ID:
57648386
NACRES:
NA.21

grade

anhydrous

Quality Level

100

vapor density

>6 (vs air)

vapor pressure

1 mmHg ( 40 °C)

Assay

≥99%

form

solid or liquid

autoignition temp.

1060 °F

expl. lim.

6.6 %, 150 °F

impurities

<0.002% water
<0.005% water (100 mL pkg)

refractive index

n20/D 1.571 (lit.)

bp

214 °C (lit.)

mp

16 °C (lit.)

solubility

water: insoluble

density

1.454 g/mL at 25 °C (lit.)

SMILES string

Clc1ccc(Cl)c(Cl)c1

InChI

1S/C6H3Cl3/c7-4-1-2-5(8)6(9)3-4/h1-3H

InChI key

PBKONEOXTCPAFI-UHFFFAOYSA-N

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General description

1,2,4-Trichlorobenzene is a highly chlorinated aromatic solvent. It is mainly used as intermediate in dyes, pesticides and also as a lubricant.

Application

1,2,4-Trichlorobenzene may be used as a solvent to prepare:
  • dimethylketene β-lactone dimer from tetramethyl-1,3-cyclobutanedione
  • salicyl-o-toluide by the reaction of phenyl salicylate and o-toluidine

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302,H315,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Irrit. 2

WGK

WGK 3

Flash Point(F)

235.4 °F

Flash Point(C)

113.0 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Dimethylketene ?-lactone dimer
Robert H, et al.
Organic Syntheses, 48, 72-72 (1968)
Salicyl-o-toluide
Allen CFH and VanAllan J
Organic Syntheses, 26, 92-92 (1946)
Biomineralisation of 1,2,4-trichlorobenzene in soils by an adapted microbial population.
Schroll R, et al.
Environmental Pollution (Barking, Essex : 1987), 127(3), 395-401 (2004)
Synthesis and characterization of several Ni/NiAl2O4 catalysts active for the 1, 2, 4-trichlorobenzene hydrodechlorination.
Cesteros Y, et al.
Applied Catalysis. B, Environmental, 25(4), 213-227 (2000)
The effect of trichlorobenzene solvent geometry on the morphologies of C60 nano/microcrystals produced from solution.
Liu DD, et al.
Materials Research Bulletin, 73, 65-69 (2016)
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