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(organic chemistry)
C12H10 A white or slightly yellow crystalline hydrocarbon, melting point 70.0°C, boiling point 255.9°C, and density 1.9896, which gives plates or monoclinic prismatic crystals; used as a heat-transfer medium and as a raw material for chlorinated diphenyls. Also known as diphenyl; phenylbenzene.



C6H5—C6H5; colorless crystals. Melting point, 71°C; boiling point, 254°-255°C. It is insoluble in water and readily soluble in organic solvents. It is present in the anthracene oil produced from coal tar. It is prepared industrially by dehydrogenation of benzene at 750°–800°C.

Biphenyl is an intermediate in the production of some dyes; mixed with phenyl ether (73.5 percent), it is used as a high-temperature heat carrier (so-called Dowtherm).

References in periodicals archive ?
Keywords: Thin film, Biphenyl (E7), Polarizing Optical Technique, Beer-Lambert's Law.
Keywords: Biphenyl analogues, brine shrimp lethal bioassay, etoposide, cytotoxic
3First example of chiral dopant containing biphenyl core was reported by.
The project is aimed to ensure minimazation of Polychlorinated biphenyl relases and subsequent health and environmental implacts through systematic capacity development for sound Polychlorinated biphenyl management in the country.
In utero polychlorinated biphenyl exposures in relation to fetal and early childhood growth.
Overall, our analyses yielded conclusive and reproducible evidence that the Allure[TM] Biphenyl stationary phase provides the greatest selectivity for unsaturated compounds.
Polychlorinated biphenyls (PCBs) are manmade chemicals and well-known contaminants prevalent in both terrestrial and aquatic ecosystems.
RTP says the halogen and non-halogen formulations comply with the German Hazardous Substance Ordinance and meet the requirements of the latest draft of the EU WEEE/ROS Directive on recycling, which calls for the elimination of polybrominated biphenyl and diphenyl-ether flame retardants.
The sodium biphenyl solution in ethyl diglyme quantitatively abstracts all halide species and converts them to an ionic form suitable for assay by various classical methods.
The detected chlorinated biphenyls were tetra-chlorinated biphenyl (at levels ranging from 0.
This Directive bans the placing on the EU market of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants.
If the "pro-lifers" are so concerned about the health of fetuses, why aren't they out in the streets protesting and demanding that the Bush Administration do something about heavy metal and polychlorinated biphenyl (PCB) pollution in our lakes, rivers and oceans?