3Methyltoluene

3-Methyltoluene, also known as m-xylene, is an aromatic hydrocarbon with the chemical formula C8H10. It is one of three isomers of xylene, the others being o-xylene and p-xylene. At room temperature, 3-methyltoluene is a colorless liquid with a sweet, aromatic odor. It is insoluble in water but miscible with many organic solvents like ethanol and ether.

Industrially, 3-methyltoluene is primarily obtained from petroleum refining processes, particularly from the catalytic reforming of naphtha. It is also a component of coal tar. Its production is often intertwined with that of its isomers. The separation of the xylene isomers is a crucial step in their industrial utilization.

The primary application of 3-methyltoluene is as a feedstock for the production of isophthalic acid. Isophthalic acid is a key monomer used in the manufacturing of polyester resins, alkyd resins, and plasticizers. These materials find widespread use in coatings, adhesives, textiles, and packaging. Additionally, 3-methyltoluene can be used as a solvent in various industrial applications and as a component in gasoline blending. Its specific isomer properties influence its reactivity and suitability for different chemical syntheses.