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Biphenyls meaning

WebApr 6, 2024 · noun. 1. a white or colourless crystalline solid used as a heat-transfer agent, as a fungicide, as an antifungal food preservative ( E230) on the skins of citrus … Webbiphenyl. [ bi-fen´il] diphenyl. polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated …

Biphenyl Definition & Meaning YourDictionary

WebOct 3, 2024 · Polychlorinated Biphenyls (PCBs) are regulated under TSCA Section 6(e) and related regulations found at 40 CFR Part 761. In 1979, PCBs were banned from manufacture in the United States. However, some products and equipment that used PCBs were allowed to continue to use them, such as electrical transformers, coatings and … Web9. Packaging for certain PCBs for disposal and storage is prescribed by EPA in 40 CFR 761.60 and 761.65. Browse special provision 9. 81. Polychlorinated biphenyl items, as defined in 40 CFR 761.3, for which specification packagings are impractical, may be packaged in non-specification packagings meeting the general packaging requirements … mary wollstonecraft school for girls https://ramsyscom.com

Biphenyls definition of biphenyls by Medical dictionary

WebPCBs, or polychlorinated biphenyls, are highly toxic industrial compounds. They pose serious health risks to fetuses, babies and children, who may suffer developmental and neurological problems from prolonged or repeated exposure to small amounts of PCBs. These chemicals are harmful to adults as well. Although they were banned from … WebPolychlorinated biphenyls (PCBs) are a group of manmade chemicals. They are oily liquids or solids, clear to yellow in color, with no smell or taste. PCBs are very stable mixtures … WebThe meaning of BIPHENYL is a white crystalline hydrocarbon C6H5·C6H5 used especially as a heat-transfer medium and in organic synthesis; also : a derivative of biphenyl. a white crystalline hydrocarbon C6H5·C6H5 used especially as a heat-transfer medium and in … hvac tim marhoover chillicothe ohio

What does biphenyl mean? - Definitions.net

Category:Biphenyls definition of biphenyls by Medical dictionary

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Biphenyls meaning

Biphenyl Definition & Meaning YourDictionary

Webbiphenyl [bi-fen´il] diphenyl. polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated biphenyls. They typically are deposited in body fat stores and are rarely mobilized except through lactation. polychlorinated biphenyl (PCB) any of various chlorinated derivatives ... WebBiphenyl definition: A white or colorless crystalline compound, C 12 H 10 , used as a heat-transfer agent, in fungicides, and in organic synthesis. Dictionary Thesaurus

Biphenyls meaning

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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 … Biphenyl (also known as diphenyl, phenylbenzene, 1,1′-biphenyl, lemonene or BP) is an organic compound that forms colorless crystals. Particularly in older literature, compounds containing the functional group consisting of biphenyl less one hydrogen (the site at which it is attached) may use the prefixes xenyl or diphenylyl.

WebApr 12, 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 … WebJun 29, 2024 · EPA recommends that building materials suspected to contain PCBs be tested directly for the presence of PCBs and removed if renovations are planned in the building. The PCB regulations provide appropriate methods for testing. More information on these procedures can be found at: Test Methods for Evaluating Solid Waste, …

Webbiphenyl [bi-fen´il] diphenyl. polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated biphenyls. They typically are deposited in body fat stores and are rarely mobilized except through lactation. polychlorinated biphenyl (PCB) any of various chlorinated derivatives ... WebPolychlorinated biphenyls (PCBs) are a class of chlorinated organic chemicals that are used for a variety of industrial and commercial purposes. Polychlorinated biphenyl is not …

WebOct 18, 2024 · The meaning of POLYBROMINATED BIPHENYL is any of several compounds that are similar to polychlorinated biphenyls in environmental toxicity and in structure but that have various hydrogen atoms replaced by bromine rather than chlorine —called also PBB.

WebDec 24, 2016 · 2,2′,6,6′-tetrasubstituted biphenyls are nonplanar at room temperature in order to avoid steric clashes between the substituents. This can in general give rise to chirality depending on the substituents, such … mary wollstonecraft rights of womenWebbiphenyl [bi-fen´il] diphenyl. polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated … hvac tiny housemary wollstonecraft schoolsWebSummary: Polychlorinated biphenyls are mixtures of up to 209 individual chlorinated compounds (known as congeners). There are no known natural sources of PCBs. PCBs … mary wollstonecraft shelley biographyWeb254-255 °C Alfa Aesar: 489 °F (253.8889 °C) NIOSH DU8050000 254 °C Food and Agriculture Organization of the United Nations Biphenyl: 254-255 °C (Literature) Alfa Aesar A10265 0.2 °C / 70 mmHg (63.9754 °C / 760 … mary wollstonecraft shelley biografiaWebBiphenyl C6H5C6H5 or C12H10 CID 7095 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, … mary wollstonecraft shelley booksWebFeb 17, 2024 · : any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic … mary wollstonecraft shelley facts