For professionals in the chemical industry, a thorough understanding of a compound's properties and safety profile is essential before procurement and use. 1,1,2,2-Tetrabromoethane (CAS 79-27-6), often abbreviated as TBE, is a halogenated organic compound that demands careful consideration of its characteristics. This article aims to provide critical information on its physical and chemical properties, alongside essential safety guidelines, to assist purchasing managers and R&D scientists in making informed decisions.

Key Physical and Chemical Properties:

  • Appearance: 1,1,2,2-Tetrabromoethane typically presents as a colorless to pale yellow liquid. Its appearance can vary slightly depending on purity and storage conditions.
  • Molecular Formula and Weight: The chemical formula is C2H2Br4, with a molecular weight of approximately 345.65 g/mol. This high molecular weight, attributed to the four bromine atoms, contributes to its notable density.
  • Density: A defining characteristic of TBE is its high density, around 2.967 g/mL at 25°C. This makes it significantly denser than water, a property exploited in its use as a heavy liquid for separation processes.
  • Boiling Point: TBE has a high boiling point of approximately 244°C, indicating relatively strong intermolecular forces.
  • Solubility: It is sparingly soluble in water (0.63 g/L at 20°C) but miscible with many organic solvents, including alcohol. This solubility profile dictates its use as a solvent in specific applications.
  • Stability and Incompatibilities: While generally stable under recommended storage conditions, TBE can decompose at elevated temperatures, releasing toxic fumes. It is incompatible with strong oxidizing agents, active metals like aluminum, magnesium, and alkali metals, and strong bases.

Safety Considerations for Handling and Storage:

As a toxic chemical, 1,1,2,2-Tetrabromoethane requires strict adherence to safety protocols. Its exposure limits are notably low (e.g., NIOSH REL: IDLH 8 ppm; OSHA PEL: 1 ppm). Proper handling includes working in well-ventilated areas, using appropriate personal protective equipment (PPE) such as chemical-resistant gloves, safety goggles, and respiratory protection when necessary. Inhalation or skin contact can cause irritation and may lead to more severe health effects, including potential damage to the liver with chronic exposure.

Storage recommendations typically involve keeping containers tightly closed in a cool, dry, and well-ventilated place, away from incompatible materials. Proper labeling and spill containment measures are also essential.

Procurement from Reliable Suppliers:

When purchasing 1,1,2,2-Tetrabromoethane (CAS 79-27-6), it is crucial to select suppliers who provide comprehensive safety data sheets (SDS) and technical information. For bulk purchases, partnering with manufacturers known for their quality control and adherence to safety standards is paramount. We are a trusted manufacturer and supplier of high-quality 1,1,2,2-Tetrabromoethane, committed to providing our clients with detailed product information and safe handling guidance. Contact us to buy this essential chemical and ensure your operations are conducted safely and efficiently.