For chemical engineers, R&D scientists, and formulation specialists, a thorough understanding of a compound's physical and chemical properties is fundamental to its effective and safe industrial application. 3,4'-Dichlorodiphenyl Ether (CAS 6842-62-2) is a prime example of an intermediate whose properties dictate its utility, particularly in the synthesis of agrochemicals like Difenoconazole.

Let's explore some of the key characteristics: Its molecular formula is C₁₂H₈Cl₂O, with a molecular weight of approximately 239.1 g/mol. This structure, featuring two chlorinated phenyl rings connected by an ether linkage, is responsible for its chemical behavior. The physical state is typically described as a colorless to light yellow liquid, which influences handling and storage procedures. Key parameters like density (around 1.29 g/cm³), boiling point (approximately 314.9 °C at 760 mmHg), and flash point (around 109.8 °C) are crucial for process design, safety assessments, and determining appropriate reaction conditions. For instance, understanding the boiling point helps in designing distillation or purification steps, while the flash point is critical for fire safety protocols.

The purity of 3,4'-Dichlorodiphenyl Ether is a significant factor for its intended use as an intermediate. An assay of ≥99.0% is often required to minimize side reactions and ensure the yield and quality of the final product, such as Difenoconazole. Water content is typically specified as ≤0.1%, further emphasizing the need for dry conditions during storage and handling.

Furthermore, properties like PSA (Polar Surface Area) and LogP (partition coefficient) offer insights into its solubility and potential environmental fate, though these are often more relevant for toxicology and environmental studies. For industrial synthesis, its solubility in common organic solvents is a practical consideration for reaction media. When considering purchasing this chemical, R&D scientists will look for manufacturers who clearly list these specifications, often in Technical Data Sheets (TDS) or product descriptions when you inquire about 'price' or 'for sale' options.

The chemical reactivity of 3,4'-Dichlorodiphenyl Ether is central to its function as an intermediate. The chlorine atoms and the ether linkage are sites for specific chemical transformations. Understanding these reactive centers allows chemists to design efficient synthetic routes. For those involved in chemical manufacturing, sourcing from a reliable supplier who can guarantee these precise chemical properties is essential for the success of their production processes.