Polychlorinated biphenyl - Wikipedia
2 days ago · A polychlorinated biphenyl (PCB) is an organic chlorine compound with the formula C 12 H 10−x Cl x.Polychlorinated biphenyls were once widely deployed as dielectric and coolant fluids in electrical apparatus, carbonless copy paper and in heat transfer fluids.. Because of their longevity, PCBs are still widely in use, even though their manufacture has declined drastically since the 1960s ...
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