For chemists, formulation scientists, and procurement specialists in the chemical industry, a deep understanding of chemical properties is fundamental to successful application and safe handling. Oxydiethylene bis(chloroformate), identified by CAS number 106-75-2, is a significant intermediate with a specific set of properties that dictate its utility and handling requirements. This article aims to provide a concise overview of these properties, focusing on their relevance for industrial applications.

Physical Appearance and Purity

Oxydiethylene bis(chloroformate) is consistently described as a colorless transparent liquid. This visual characteristic is often the first indicator of product quality. High-purity grades, typically 99% minimum assay, are standard for most industrial applications, ensuring predictable reactivity and minimizing the presence of unwanted byproducts. Buyers seeking to purchase this compound should always confirm these specifications with their manufacturer or supplier.

Key Physicochemical Properties

Several key physicochemical properties define the behavior and utility of Oxydiethylene bis(chloroformate):

• Molecular Formula: C6H8Cl2O5. This formula dictates the compound's elemental composition and molecular weight (231.03 g/mol), essential for stoichiometric calculations in synthesis.
• Boiling Point: Approximately 330.45°C (rough estimate). This high boiling point indicates low volatility at room temperature, simplifying storage and handling to some extent, though precautions are still necessary.
• Density: Estimated at 1.5876. Density is important for volume-to-mass conversions and for certain formulation calculations.
• Refractive Index: Estimated at 1.5300. Refractive index can be used as a quality control parameter to verify the identity and purity of the substance.
• Flash Point: 99°C. The flash point indicates the lowest temperature at which the vapor of the chemical can ignite when exposed to an ignition source. A flash point of 99°C suggests that while not highly flammable at ambient temperatures, it requires careful management around heat and open flames.

Reactivity and Safety Considerations

As a bis(chloroformate), Oxydiethylene bis(chloroformate) is a reactive compound. The chloroformate functional groups are electrophilic and readily react with nucleophiles such as alcohols, amines, and thiols, leading to the formation of esters, carbamates, and thiocarbonates, respectively. This reactivity is the basis for its use in polymerization and as a synthetic intermediate. Safety data indicates it can be harmful if swallowed, irritating to skin and eyes, and potentially toxic by inhalation. Therefore, when you buy Oxydiethylene bis(chloroformate), it is crucial to follow the safety guidelines provided by the supplier and use appropriate personal protective equipment (PPE).

Conclusion

Understanding the precise chemical properties of Oxydiethylene bis(chloroformate) (CAS 106-75-2) is fundamental for its effective and safe application in industrial processes. Manufacturers and researchers can leverage this knowledge when sourcing and utilizing this versatile chemical intermediate from reliable suppliers in China.