For professionals working with organic compounds, a thorough understanding of a chemical's properties and safe handling procedures is fundamental to successful and secure operations. 2,2'-Dibromobiphenyl (CAS 13029-09-9) is a compound frequently utilized in organic synthesis, particularly for advanced materials. This article provides insights into its key properties and essential handling guidelines, emphasizing the importance of sourcing from reputable manufacturers.

Key Physical and Chemical Properties

2,2'-Dibromobiphenyl, with the molecular formula C12H8Br2, is recognized for its distinctive characteristics:

  • Appearance: It is typically presented as a white crystalline powder. This consistent appearance is a good initial indicator of product quality and purity.
  • Melting Point: The melting point generally falls within the range of 78-83°C. This parameter is crucial for determining its stability under varying temperature conditions during synthesis or storage.
  • Purity: High purity is a hallmark of quality for this intermediate. Leading manufacturers often achieve purities of 98.0% or higher, sometimes reaching up to 99.86%, as confirmed by analytical methods like HPLC.
  • Solubility: It exhibits good solubility in common organic solvents such as DMSO, DMF, ethyl acetate, and dichloromethane, but demonstrates poor solubility in water. This differential solubility is often exploited in purification processes.
  • Stability: Under normal storage conditions (cool, dry, well-ventilated area, in a tightly closed container), 2,2'-Dibromobiphenyl is considered stable and not prone to degradation. It should be kept away from oxidizing agents.

Safe Handling and Storage Recommendations

When working with 2,2'-Dibromobiphenyl, standard laboratory safety protocols should be followed:

  • Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety goggles or face shields, chemical-resistant gloves (e.g., nitrile), and a lab coat. In areas with potential dust exposure, respiratory protection (e.g., a dust mask) may be necessary.
  • Ventilation: Handle the compound in a well-ventilated area, preferably within a fume hood, to minimize inhalation of any airborne particles.
  • Storage: Store the chemical in its original, tightly sealed container at room temperature in a cool, dry, and well-ventilated location, away from direct sunlight and incompatible materials like strong oxidizers.
  • Disposal: Disposal should comply with all local, regional, and national regulations for chemical waste. Avoid releasing into the environment, as halogenated organic compounds can be harmful to aquatic life.

Partnering for Quality and Safety

For procurement managers and researchers looking to buy 2,2'-Dibromobiphenyl, partnering with manufacturers that provide detailed safety data sheets (SDS) and adhere to high production standards is crucial. These suppliers ensure that the product is not only of high purity but also handled and packaged with safety in mind, providing clear guidance for its use.