Mxylene

Mxylene, commonly referred to as meta-xylene, is a colorless, flammable liquid and one of the three isomers of dimethylbenzene (the others being o-xylene and p-xylene). Its chemical formula is C8H10, with two methyl groups attached to the benzene ring at the 1 and 3 positions. It is a component of mixed xylenes that are obtained from petroleum streams and refined for industrial use.

In industry, xylenes are produced during catalytic reforming and related refinery processes and are separated into individual isomers by distillation and other separation techniques. Meta-xylene is typically present in smaller proportions than p-xylene in mixed xylenes. It is largely immiscible with water and is soluble in many organic solvents; it has a boiling point around 139°C, and its vapor can contribute to atmospheric VOC levels if released.

Uses of mxylene are primarily as a solvent and as a chemical intermediate in organic synthesis. It is employed in paints, coatings, inks, and adhesive formulations where its particular solvent properties can be advantageous. In broader xylene chemistry, p-xylene is the principal feedstock for terephthalic acid production, while o- and m-xylenes are used in various oxidation and rearrangement processes to furnish other aromatic intermediates; mxylene’s role is generally more specialized and dependent on the desired synthetic route.

Safety and handling: Xylenes are flammable and can be hazardous if inhaled or absorbed through the skin. They can irritate the eyes, skin, and respiratory system and may cause dizziness or drowsiness with exposure. They should be stored in well-ventilated areas, kept away from ignition sources, and handled with appropriate personal protective equipment.