NINGBO INNO PHARMCHEM CO.,LTD. is a premier supplier of chemical compounds, and understanding the chemistry behind products like m-Xylene (CAS 108-38-3) is fundamental to their effective use. This section delves into the chemical properties of m-Xylene, its industrial synthesis, and crucial safety considerations for handling this versatile aromatic hydrocarbon.

Chemically, m-Xylene is classified as a dimethylbenzene, an aromatic hydrocarbon with the formula C8H10. The meta-arrangement of its two methyl groups on the benzene ring distinguishes it from its ortho- and para-isomers, influencing its reactivity and physical characteristics. Its molecular weight is approximately 106.17 g/mol. As a clear, colorless liquid, it exhibits a characteristic sweet odor. Key physical properties include a boiling point around 138-139°C and a melting point of -48°C, making it liquid at standard room temperatures. Its low solubility in water but high solubility in organic solvents like ethanol and ether are critical for its function as a solvent and reactant.

Industrial production of xylenes, including m-Xylene, typically involves catalytic reforming of petroleum naphthas or steam cracking of hydrocarbons. Processes like alkylation of toluene or benzene also contribute to xylene production. The separation of isomers is often achieved through fractional distillation or selective adsorption, ensuring that specific isomers like m-Xylene can be obtained in high purity for targeted applications. The chemical synthesis pathways often involve reactions targeting either the methyl groups or the aromatic ring, yielding derivatives used in various downstream products.

Safety is a critical aspect when handling m-Xylene. It is classified as a flammable liquid and vapor, requiring careful storage away from ignition sources. Inhalation of vapors can cause respiratory irritation and central nervous system depression, with symptoms like headache and dizziness. Skin contact can lead to irritation and defatting. Therefore, appropriate personal protective equipment (PPE), including gloves, safety glasses, and adequate ventilation or respiratory protection, is essential when working with m-Xylene. Understanding the SDS (Safety Data Sheet) for m-Xylene is crucial for safe laboratory and industrial practices. NINGBO INNO PHARMCHEM CO.,LTD. prioritizes the safe distribution of its chemical products.