O-Xylene, identified by CAS number 95-47-6, is an organic compound that plays a crucial role across various industrial sectors. As an aromatic hydrocarbon and a key isomer of xylene, its unique properties as a solvent and chemical intermediate make it indispensable for manufacturers worldwide. This article provides an in-depth look at O-Xylene, its characteristics, and its primary industrial applications, highlighting why reliable sourcing is essential.

Chemically, O-Xylene is known as 1,2-Dimethylbenzene. It presents as a colorless, transparent liquid with a characteristic odor similar to toluene. Its molecular formula is C8H10, and its molar mass is approximately 106.17 g/mol. A significant property is its miscibility with common organic solvents such as ethanol, ether, acetone, and benzene, while exhibiting very low solubility in water. This characteristic dictates its effectiveness in applications where it needs to dissolve other organic compounds.

The physical and chemical properties of O-Xylene make it highly valuable. Its boiling point is around 144.4 °C, and its flash point is approximately 32 °C, indicating it is a flammable liquid. Understanding these properties is vital for safe handling, storage, and transportation. For procurement managers, knowing these specifications helps in assessing the material's suitability for their specific operational environments and compliance requirements.

Industrially, O-Xylene is most prominently used as a solvent and as a chemical intermediate. As a solvent, it finds extensive application in the formulation of paints, lacquers, varnishes, and coatings, where it effectively dissolves resins and binders, aiding in achieving the desired viscosity and application properties. In the printing ink industry, it is used to create inks with specific drying rates and solvency for various printing processes.

Beyond its solvent capabilities, O-Xylene is a key precursor for the synthesis of phthalic anhydride. This conversion is a foundational process for producing numerous downstream products, including plasticizers used in PVC, polyester resins for fiberglass reinforced plastics, and various dyes. Furthermore, O-Xylene is utilized in the production of certain pesticides and pharmaceuticals, including vitamins, underscoring its importance in sectors ranging from agriculture to healthcare. For businesses in these fields, securing a consistent supply of high-purity O-Xylene from a reliable manufacturer is paramount.

In summary, O-Xylene (CAS 95-47-6) is a versatile and essential chemical. Its distinct properties as a solvent and a crucial intermediate for products like phthalic anhydride, dyes, pesticides, and pharmaceuticals underscore its industrial significance. Procurement professionals and scientists seeking to buy O-Xylene should prioritize purity and a stable supply chain from trusted manufacturers to ensure operational success.