1,4-Dichlorobenzene

1,4-Dichlorobenzene

Ball-and-stick model of 1,4-Dichlorobenzene

1,4-Dichlorobenzene (also known as p-dichlorobenzene) is an organic compound with the formula C_H_Cl_. It is a colorless solid with a strong odor, commonly used as a deodorant for garbage and restrooms, and as a pesticide.

Structure and Properties

1,4-Dichlorobenzene is a derivative of benzene, with two chlorine atoms substituted at the para positions. This symmetrical substitution pattern gives the compound its name and distinct properties. It is a crystalline solid at room temperature and has a melting point of 53.5 °C.

Synthesis

1,4-Dichlorobenzene is typically produced by the chlorination of benzene in the presence of a catalyst. The reaction involves the substitution of hydrogen atoms on the benzene ring with chlorine atoms.

Uses

1,4-Dichlorobenzene is widely used as a moth repellent and in air fresheners. It is also used in the production of poly(p-phenylene sulfide), a high-performance thermoplastic polymer.

Synthesis of Poly(p-phenylene sulfide)

Health and Safety

Exposure to 1,4-Dichlorobenzene can occur through inhalation, ingestion, or skin contact. It is important to handle this compound with care, as it can cause irritation and has been classified as a possible human carcinogen.

Environmental Impact

1,4-Dichlorobenzene is persistent in the environment and can accumulate in living organisms. It is important to manage its use and disposal to minimize environmental contamination.

Related Pages

• Benzene
• Chlorination
• Poly(p-phenylene sulfide)
• Pesticide