Trichlorobenzenes
Trichlorobenzenes are a family of chlorinated benzenes in which three hydrogen atoms on a benzene ring have been replaced by chlorine atoms, giving the molecular formula C6H3Cl3. Four constitutional isomers exist: 1,2,3-trichlorobenzene; 1,2,4-trichlorobenzene; 1,3,4-trichlorobenzene; and 1,3,5-trichlorobenzene. The isomers differ in the arrangement of chlorine substituents and can have distinct physical and chemical properties.
Production and occurrence: Industrially, trichlorobenzenes are produced by controlled chlorination of benzene or of lower chlorobenzenes,
Physical and chemical properties: Trichlorobenzenes are relatively nonpolar and exhibit low water solubility. They are typically
Applications: They are used as solvents and as intermediates in the synthesis of dyes, pigments, pharmaceuticals,
Safety and regulatory notes: Chlorinated benzenes can be toxic and persistent in the environment; exposure or