1Ethyl2methylbenzene

1-Ethyl-2-methylbenzene, also known as o-xylene, is an organic compound with the chemical formula C8H10. It is a clear, colorless liquid with a sweet odor. The molecule consists of a benzene ring with two methyl groups (CH3) and one ethyl group (C2H5) attached to adjacent carbon atoms. This arrangement gives o-xylene its "ortho" designation, indicating that the methyl and ethyl groups are directly adjacent to each other.

O-xylene is a significant industrial chemical. It is primarily used as a precursor in the production of terephthalic acid, a key component in the manufacture of polyester fibers and plastics. Additionally, o-xylene is used as a solvent in various applications, including paints, coatings, and adhesives.

The production of o-xylene involves the catalytic reforming of petroleum naphtha. This process involves heating the naphtha in the presence of a catalyst, which breaks down the larger hydrocarbon molecules into smaller ones, including o-xylene.

O-xylene is classified as a volatile organic compound (VOC) and has potential health and environmental impacts. Exposure to high levels of o-xylene can cause irritation to the eyes, skin, and respiratory system. It is also a contributor to smog and can degrade air quality. Therefore, proper handling, storage, and disposal practices are essential to mitigate these risks.