metadichlorobenzenes

Metadichlorobenzene, also known as 1,3-dichlorobenzene, is an organic compound with the chemical formula C6H4Cl2. It is one of three structural isomers of dichlorobenzene, the others being ortho-dichlorobenzene (1,2-dichlorobenzene) and para-dichlorobenzene (1,4-dichlorobenzene). Metadichlorobenzene is a colorless liquid with a distinct aromatic odor. It is largely insoluble in water but soluble in many organic solvents such as ethanol, ether, and benzene.

This compound is typically produced through the chlorination of benzene. Depending on reaction conditions, a mixture of dichlorobenzene isomers is formed, from which metadichlorobenzene can be isolated. Its primary uses have historically been as an intermediate in the synthesis of various chemicals, including dyes, pesticides, and pharmaceuticals. It has also found application as a solvent, particularly for fats, oils, and resins.

Metadichlorobenzene is considered a volatile organic compound (VOC). Environmental exposure can occur through industrial emissions or volatilization from contaminated sites. Health effects associated with exposure can vary depending on the concentration and duration of contact. In occupational settings, skin and eye irritation, as well as respiratory effects, have been reported. Research into its environmental fate and toxicological profile continues.