N-Ethyl-3-methylaniline (CAS 102-27-2) is an industrial chemical that requires careful understanding of its properties and safe handling procedures. As a pale yellow oily liquid, it is primarily used as a dye intermediate and in color developer applications. For professionals involved in its purchase, storage, and use, a thorough grasp of its characteristics is essential for ensuring both operational efficiency and workplace safety. This article outlines the key physical and chemical properties, as well as crucial safety considerations for this compound.

Physically, N-Ethyl-3-methylaniline typically presents as a clear to slightly colored liquid. Its density is slightly less than water, and it has a characteristic aromatic amine odor. Key chemical properties include a boiling point around 221°C and a flash point of approximately 89°C, indicating it is a combustible liquid. While generally soluble in organic solvents like alcohol and ether, its solubility in water is limited. The compound can be sensitive to prolonged exposure to air and light, potentially leading to discoloration or degradation, which is why proper storage conditions are vital. Manufacturers usually supply it with a guaranteed purity of at least 98%, which is critical for its performance in downstream applications like dye synthesis.

From a safety perspective, N-Ethyl-3-methylaniline is classified as a toxic substance. Inhalation of vapors, skin contact, or ingestion can lead to adverse health effects, including irritation to skin, eyes, and respiratory tract. Furthermore, it can cause methemoglobinemia, a condition affecting the oxygen-carrying capacity of the blood. Consequently, when handling this chemical, it is imperative to wear appropriate personal protective equipment (PPE), including chemical-resistant gloves, safety goggles, and protective clothing. Adequate ventilation in the workspace is also crucial to minimize exposure to vapors. Procurement managers should ensure that Material Safety Data Sheets (MSDS) are readily available and consulted by all personnel who will interact with the product.

Proper storage and transportation are equally important. N-Ethyl-3-methylaniline should be stored in tightly sealed containers in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizing agents or acids. Adherence to regulations governing the transport of toxic and flammable chemicals is mandatory. For businesses looking to buy N-Ethyl-3-methylaniline, selecting a supplier that emphasizes safe packaging and shipping practices, often with 250 kg drums, contributes to overall safety and compliance. Working with experienced chemical intermediate suppliers, particularly from regions like China, can provide access to both quality products and essential safety guidance.

In summary, understanding the physical, chemical, and toxicological properties of N-Ethyl-3-methylaniline (CAS 102-27-2) is fundamental for its safe and effective industrial use. By prioritizing proper handling, storage, and sourcing from reliable manufacturers, companies can successfully integrate this vital intermediate into their processes while maintaining the highest standards of safety and quality.