For professionals in the chemical industry, a thorough understanding of a compound's properties is crucial for its effective and safe utilization. Benzaldehyde dimethyl acetal (CAS 1125-88-8) is a chemical that, while versatile, requires specific knowledge regarding its characteristics. This article outlines its key physical and chemical properties, providing essential insights for safe handling and optimal application.

Appearance-wise, Benzaldehyde Dimethyl Acetal is typically described as a clear, colorless liquid. This visual cue is the first indicator of its physical state under standard conditions. Its boiling point is noted to be in the range of 87-89 °C at 18 mmHg, or approximately 196 °C at standard atmospheric pressure, indicating its moderate volatility. The density is around 1.014 g/mL at 25 °C, making it slightly denser than water. Its refractive index, n20/D, is approximately 1.493, a value useful for purity checks.

Chemically, the most significant property of Benzaldehyde Dimethyl Acetal is its sensitivity to moisture. As an acetal, it is prone to hydrolysis in the presence of water, especially under acidic conditions, readily converting back to benzaldehyde and methanol. This necessitates careful storage and handling to prevent exposure to atmospheric moisture. It is often recommended to store this compound under an inert atmosphere, such as nitrogen, and at controlled temperatures, typically between 2-8 °C, to maintain its integrity and shelf life. This moisture sensitivity is a critical factor to consider when planning synthesis steps or formulating products.

Safety information indicates that Benzaldehyde Dimethyl Acetal is classified as an irritant (Harmful if swallowed, irritating to eyes, respiratory system, and skin). Appropriate personal protective equipment (PPE), including gloves, eye protection, and lab coats, should be worn when handling. Ensure adequate ventilation in the work area. It is also classified as a combustible liquid, with a flash point of 157 °F (69.4 °C), requiring precautions to avoid ignition sources.

For B2B purchasers, understanding these properties is vital when requesting quotes and comparing specifications from various manufacturers. A reliable supplier will clearly list these attributes and provide safety data sheets (SDS) for detailed guidance. By appreciating these characteristics, users can confidently incorporate Benzaldehyde Dimethyl Acetal into their processes, ensuring both safety and optimal performance.