Aroclor

Aroclor is a brand name for a group of chemical mixtures known as polychlorinated biphenyls (PCBs), used mainly in electrical equipment like transformers and capacitors because of their insulating properties. PCBs are synthetic chemicals created by bonding chlorine atoms to a biphenyl molecule. While functional, Aroclors are now known to be environmentally persistent and potentially harmful to human health, leading to their ban or strict regulation in many countries. Aroclors can accumulate in the environment and living organisms, and their presence is a significant concern in environmental cleanup efforts.