1,1,2,2-tetrabromoethane

1,1,2,2-tetrabromoethane is an organobromine compound with the molecular formula C2H2Br4 and CAS number 79-27-6. This halogenated hydrocarbon consists of an ethane molecule where four hydrogen atoms are replaced by bromine atoms. With a molecular weight of 345.65 g/mol, it is classified as acutely toxic (Acute Tox. 2) and requires careful handling due to its hazardous properties including eye irritation potential and chronic aquatic toxicity.

1,1,2,2-tetrabromoethane is typically a colorless to pale yellow liquid at room temperature with a characteristic sweet odor. As a heavily brominated compound, it has a high density and low volatility compared to lighter hydrocarbons. It exhibits limited solubility in water but is miscible with most organic solvents. The compound is relatively stable under normal conditions but can decompose at elevated temperatures, releasing toxic bromine-containing vapors.

1,1,2,2-tetrabromoethane is primarily used as a flame retardant additive in various industrial applications and as an intermediate in chemical synthesis. It serves as a solvent for certain specialized processes and can be employed in the production of other brominated compounds. The substance finds applications in research laboratories for analytical purposes and as a reagent in organic chemistry reactions, particularly those requiring heavy halogenated solvents with specific density properties.

1,1,2,2-tetrabromoethane must be handled with extreme caution due to its Acute Tox. 2 classification. Essential personal protective equipment includes chemical-resistant gloves, safety goggles or face shield to prevent eye irritation, and respiratory protection when ventilation is inadequate. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin and eye contact, and prevent inhalation of vapors. Emergency eyewash stations and safety showers should be readily accessible.

1,1,2,2-tetrabromoethane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, ignition sources, and incompatible materials. Storage areas must be equipped with appropriate containment systems to prevent environmental release. Keep containers upright and protected from physical damage. The storage facility should comply with local regulations for toxic substances and include appropriate warning signs indicating the presence of acutely toxic materials.

Immediate action is critical following contact with 1,1,2,2-tetrabromoethane due to its acute toxicity. For skin contact, immediately remove contaminated clothing and flush the affected area with plenty of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water for at least 15 minutes and seek immediate medical attention. If inhaled, move the person to fresh air and seek medical attention. For ingestion, do not induce vomiting and seek immediate medical care.

1,1,2,2-tetrabromoethane must be disposed of as hazardous waste through licensed waste management companies specializing in toxic chemical disposal. The substance cannot be discharged to sewers, soil, or water bodies due to its toxicity and environmental persistence. Disposal must comply with local and EU waste regulations, including proper classification, labeling, and documentation. Incineration at authorized high-temperature facilities capable of handling halogenated compounds is typically the preferred disposal method.

1,1,2,2-tetrabromoethane is classified under ADR as Class 6.1 (toxic substances), Packing Group III, requiring specific transport protocols for toxic materials. Packages must bear appropriate UN identification numbers, hazard labels, and proper shipping names. Vehicles must carry emergency response information and appropriate safety equipment. Drivers require ADR certification for transporting dangerous goods. The substance must be segregated from incompatible materials during transport and secured to prevent damage or leakage.

1,1,2,2-tetrabromoethane is subject to comprehensive EU chemical regulations including REACH registration requirements and CLP classification obligations. While not currently listed as a Substance of Very High Concern (SVHC), its Acute Tox. 2 classification mandates strict labeling with danger warnings and GHS06 pictograms. The substance may be subject to additional restrictions under national legislation and requires compliance with occupational exposure limits. Import/export may require specific authorizations depending on jurisdiction.

1,1,2,2-tetrabromoethane is available through OYSI, a specialized European distributor of technical chemicals serving industrial and research customers across the continent. OYSI provides compliant packaging, proper documentation including safety data sheets, and ensures adherence to all regulatory requirements for this toxic substance. As a professional chemical distributor, OYSI offers technical support and guidance on safe handling, regulatory compliance, and application-specific requirements for European customers requiring this specialized brominated compound.