Decabromodiphenyl

Decabromodiphenyl is a polybrominated biphenyl (PBB) chemical in which ten bromine atoms substitute the ten hydrogen atoms on a biphenyl core. Its chemical formula is C12Br10. The molecule consists of two phenyl rings linked by a single bond with bromine atoms occupying all available positions, making it a highly brominated, lipophilic compound.

Historically, decabromodiphenyl has been used as a flame retardant additive in various polymers, including plastics used in electronics, textiles, and construction materials. It has been part of broader flame-retardant formulations, sometimes in combination with other halogenated compounds. In recent years its use has declined in favor of alternative retardants and refined formulations, due in part to regulatory pressures and environmental considerations.

Environmental and health considerations reflect the broader concerns associated with highly brominated biphenyls. Decabromodiphenyl is persistent in the environment and can bioaccumulate in ecological systems. It may be released during product disposal or recycling, contributing to long-range environmental transport. Toxicological data specific to decabromodiphenyl are limited, but related PBBs have been studied for potential thyroid-disrupting effects and neurodevelopmental impacts in animals, and health assessments typically emphasize minimizing exposure.

Regulatory and industry trends have led to increased scrutiny of decabromodiphenyl and related compounds, with many regions restricting certain PBBs and encouraging safer, more sustainable flame-retardant alternatives.