Biphenyl - Wikipedia
WEBBiphenyl is an aromatic hydrocarbon with a molecular formula (C 6 H 5) 2. It is notable as a starting material for the production of polychlorinated biphenyls (PCBs), which were once widely used as dielectric fluids and heat transfer agents.
Learn about Polychlorinated Biphenyls | US EPA
WEBApr 2, 2024 · PCBs are a group of man-made organic chemicals consisting of carbon, hydrogen and chlorine atoms. The number of chlorine atoms and their location in a PCB molecule determine many of its physical and chemical properties. PCBs have no known taste or smell, and range in consistency from an oil to a waxy solid.
Polychlorinated biphenyl - Wikipedia
WEBPolychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1976 and internationally by the Stockholm Convention on Persistent Organic Pollutants in 2001.
Biphenyl | Synthesis, Structure, Properties | Britannica
WEBbiphenyl, an aromatic hydrocarbon, used alone or with diphenyl ether as a heat-transfer fluid; chemical formula, C 6 H 5 C 6 H 5. It may be isolated from coal tar; in the United States, it is manufactured on a large scale by the thermal dehydrogenation of benzene. Biphenyl is slightly less reactive chemically than benzene.
Biphenyl | C6H5C6H5 | CID 7095 - PubChem
WEBBiphenyl | C6H5C6H5 or C12H10 | CID 7095 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
HEALTH EFFECTS - Toxicological Profile for Polychlorinated Biphenyls …
WEBThe primary purpose of this chapter is to provide public health officials, physicians, toxicologists, and other interested individuals and groups with an overall perspective on the toxicology and epidemiology of polychlorinated biphenyls (PCBs).
What Are Polychlorinated Biphenyls (PCBs)? - Agency for Toxic ...
WEBDefinition. PCBs are chemicals formed by attaching one or more chlorine atoms (at the Xs in Figure 1 below) to a pair of connected benzene rings. Figure 1: Polychlorinated Biphenyls (PCBs) Depending on the number and position of chlorine atoms attached to the biphenyl ring structure, 209 different PCB congeners can be formed.
ATSDR Clinician Brief: Polychlorinated Biphenyls | ATSDR
WEBDescription. Properties. Polychlorinated biphenyls (PCBs) are a family of manufactured chemicals that were used in multiple industrial and commercial applications because of their insulating and nonflammable properties.
Review Biphenyls and their derivatives as synthetically and ...
WEBMay 1, 2017 · Biphenyls, as the name suggests, are two conjoined benzene rings attached through their 1,1′-positions. It is a white crystal with characteristic pleasant smell ( Pagan, 2012 ). Biphenyls are important structural analog which are used considerably in synthesis of various compounds.
Biphenyl - an overview | ScienceDirect Topics
WEBBiphenyl is an aromatic hydrocarbon, also called diphenyl. Biphenyl has a melting point at 69.2°C and is a colorless solid at room temperature. It has significant vapor pressure (4 Pa at 20°C), low water solubility, and illustrates substantial volatilization in an aqueous solution.
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