Displaying 1 results of Pentachlorobutadiene Impurities Pentachlorobutadiene (PCBD) is a toxic and persistent organic pollutant that is produced as a byproduct of certain industrial processes. It is commonly used as a solvent for rubber, resins, and oils, and is also found in some pesticides. PCBD is known to have negative impacts on human health and the environment, and its use is strictly regulated in many countries. Impurities in PCBD can further increase its toxicity and persistence, making it even more hazardous. Proper handling and disposal of PCBD and its impurities is essential to protect human health and the environment.