For professionals working with chemical compounds, a thorough understanding of their properties, safe handling procedures, and potential hazards is non-negotiable. 1-Bromo-4-ethylbenzene (CAS 1585-07-5) is a widely used intermediate in various chemical industries, and knowing its characteristics is key to its effective and safe utilization.

Physical and Chemical Properties of 1-Bromo-4-ethylbenzene
1-Bromo-4-ethylbenzene is a substituted aromatic hydrocarbon. Its key properties include:

• Appearance: Typically described as a colorless to yellow liquid. The color can sometimes vary slightly based on purity and storage conditions.
• Molecular Formula: C8H9Br
• Molecular Weight: 185.06 g/mol
• CAS Number: 1585-07-5
• Purity: Commonly available at purity levels of 97% Min. or 98% (GC). Higher purity grades are often preferred for sensitive synthetic applications.
• Boiling Point: Around 203-204 °C (lit.), indicating it is a relatively stable liquid at room temperature.
• Melting Point: Approximately -43 °C, confirming its liquid state under standard laboratory conditions.
• Flash Point: Around 63 °C (lit.) or 147°F, classifying it as a combustible liquid.
• Density: Approximately 1.343 g/mL at 25 °C, meaning it is denser than water.
• Solubility: Insoluble in water but soluble in common organic solvents like chloroform, ethyl acetate, and methanol.

Safe Handling and Storage Recommendations
To ensure safe and effective use, proper handling and storage of 1-Bromo-4-ethylbenzene are crucial:

• Handling: Always handle this compound in a well-ventilated area, preferably under a fume hood. Wear appropriate personal protective equipment (PPE), including chemical-resistant gloves (e.g., nitrile or neoprene), safety goggles, and a lab coat. Avoid inhalation of vapors and contact with skin and eyes.
• Storage: Store in a tightly closed container in a cool, dry, and well-ventilated place. Keep away from heat, sparks, open flames, and other ignition sources. It should also be stored away from incompatible materials, such as strong oxidizing agents. Recommended storage temperatures may vary, but keeping it in a cool environment helps maintain its stability.

Safety Precautions and Hazard Information
According to common safety data sheets, 1-Bromo-4-ethylbenzene may be classified as an irritant. Specific hazard statements often include:

• H315: Causes skin irritation.
• H319: Causes serious eye irritation.
• H335: May cause respiratory irritation.
• H227: Combustible liquid.

Appropriate precautionary statements (P-statements) should be followed, such as avoiding breathing vapor, ensuring adequate ventilation, and seeking medical attention if irritation occurs.

Sourcing Quality 1-Bromo-4-ethylbenzene
When you need to buy 1-Bromo-4-ethylbenzene, choosing a reliable manufacturer is vital for obtaining a high-quality product with accurate safety information. Many reputable suppliers in China offer this compound with detailed product specifications and SDS. Ensuring your supplier provides comprehensive documentation will contribute to safe and efficient laboratory or industrial operations.