Overview
Bromotrifluoroethane is an organobromine compound belonging to the haloalkane family, characterized by its trifluoroethyl group and bromine substituent. First synthesized in the mid-20th century, it gained industrial importance as a versatile building block for fluorinated compounds. The chemical serves as a strategic intermediate in fine chemical synthesis due to its ability to introduce both fluorine and bromine functional groups. Its commercial production typically involves bromination of trifluoroethylene or halogen exchange reactions. Industrial grades typically maintain 98-99% purity with strict control of acidic impurities.
Physical and Chemical Properties
As a low-boiling liquid (58-60°C), bromotrifluoroethane exhibits high volatility with a vapor pressure of 230 mmHg at 20°C. Its density of 1.78 g/cm³ makes it significantly heavier than water. The compound's refractive index ranges between 1.36-1.38, while its dipole moment measures approximately 2.1 D. Chemically, the bromine atom shows high reactivity in nucleophilic substitution reactions, while the fluorine atoms provide exceptional stability to the molecular structure. It undergoes thermal decomposition above 300°C, releasing hydrogen fluoride and bromine radicals. Compatibility testing confirms resistance to most metals but reactivity with strong bases and alkali metals.
Main Applications
In pharmaceutical manufacturing, bromotrifluoroethane serves as a key precursor for fluorinated drug molecules, particularly in antiviral and CNS-active compounds. Its ability to modify lipophilicity makes it valuable for drug design. The chemical plays a crucial role in specialty chemical production as a fluorinating agent for heterocyclic compounds and catalyst systems. In fire protection, it functions as a component in halon alternatives for critical equipment protection. Emerging applications include use as a dielectric fluid in high-voltage equipment and as a processing aid in polymer production.
Safety and Storage
Bromotrifluoroethane requires Class IB flammable liquid handling procedures with storage in FM-approved safety cans or grounded steel drums. Workplace exposure limits typically follow 100 ppm TWA guidelines for halogenated hydrocarbons. Decomposition products include hydrogen bromide and carbonyl fluoride, necessitating acid gas scrubbers in processing areas. Spill response requires non-sparking tools and chemical absorbents like vermiculite. Personal protective equipment must include chemical goggles, fluoropolymer gloves, and respiratory protection for vapor concentrations exceeding 50 ppm.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 9001 certification and proper hazardous material transportation licenses. Technical specifications should include gas chromatography purity analysis, water content (<100 ppm), and acid value testing reports. Bulk shipments typically come in 200kg steel drums or isotanks with nitrogen blanket. Consider regional regulations—some jurisdictions restrict use in fire suppression systems. For pharmaceutical applications, request additional documentation including residual solvent profiles and heavy metal screening. Just-in-time inventory is recommended due to the compound's shelf life of 12-18 months under proper storage.
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