Title: 1,2,4-Trichlorobenzene
CAS Registry Number: 120-82-1
Additional Names: unsym-Trichlorobenzene
Molecular Formula: C6H3Cl3
Molecular Weight: 181.45
Percent Composition: C 39.72%, H 1.67%, Cl 58.62%
Literature References: Prepd from 2,4-dichloroaniline or 2,5-dichloroaniline or 3,4-dichloroaniline by diazotization and treatment with Cu2Cl2: Beilstein, Kurbatow, Ann. 192, 230 (1878); van der Lande, Rec. Trav. Chim. 51, 104, 110 (1932); from 1,3-diaminobenzene by tetrazotization and treatment with Cu2Cl2: Cohn, Fischer, Monatsh. Chem. 21, 278 (1900).
Properties: Liquid; mp 17°; d2525 1.4634; bp 213°; nD25 1.5524. Flash pt 110°C (230°F). Volatile with steam. Insol in water. Sparingly sol in alc. Miscible with ether, benzene, petr ether, carbon disulfide.
Melting point: mp 17°
Boiling point: bp 213°
Flash point: Flash pt 110°C (230°F)
Index of refraction: nD25 1.5524
Density: d2525 1.4634
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin, mucous membranes. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 314. |