296104

1,2,4-Trichlorobenzene

anhydrous, ≥99%

• Synonym(s): 1,2,4-TCB
• Empirical Formula (Hill Notation): C₆H₃Cl₃
• CAS Number: 120-82-1
• Molecular Weight: 181.45
• Beilstein/REAXYS Number: 956819
• EC Number: 204-428-0
• MDL number: MFCD00000547
• UNSPSC Code: 12352101
• PubChem Substance ID: 57648386
• NACRES: NA.21

Properties

• 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

Description

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

Safety Information

• pictograms: GHS07,GHS09
• signalword: Warning
• hcodes: H302 - H315 - H410
• pcodes: P264 - P273 - P280 - P301 + P312 - P302 + P352 - P332 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Irrit. 2
• Storage Class: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: 235.4 °F - closed cup
• flash_point_c: 113.0 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter