Record Display for the EPA National Library CatalogRECORD NUMBER: 5 OF 9
|Main Title||Chemical Market Input/Output Analysis of Selected Chemical Substances to Assess Sources of Environmental Contamination: Task II. Biphenyl and Diphenyl Oxide.|
|Author||Meylan, William M. ; Howard., Philip H. ;|
|CORP Author||Syracuse Research Corp., N.Y. Center for Chemical Hazard Assessment.;Environmental Protection Agency, Washington, D.C. Office of Toxic Substances.|
|Report Number||TR-76-599; EPA-68-01-3224; EPA/560/6-77/003;|
|Stock Number||PB-275 097|
|Additional Subjects||Chemical industry ; Environmental surveys ; Biphenyl ; Industrial wastes ; Manufacturing ; Dyes ; Surfactants ; Soaps ; Fungicides ; Marketing ; Technology ; Economics ; Process charting ; Benzene ; Toluene ; Byproducts ; Phenols ; Management planning ; Bromine organic compounds ; Chlorine organic compounds ; Industrial hygiene ; Physical properties ; Phenyl ether ; Perfumes ; Heat transfer fluids ; Benzene/chloro ; Polychlorinated biphenyl ; Polybrominated biphenyl|
This report considers the sources of environmental contamination from biphenyl and diphenyl oxide. Biphenyl is manufactured in commercial quantities for use in dye carriers, heat transfer fluids, derivatives such as PCB's and alkylated biphenyls, and fruit fungicides. Diphenyl oxide is manufactured in commercial quantities for use in dye carriers, heat transfer fluids, derivatives such as butylchlorodiphenyl oxide, decabromodiphenyl oxide, surfactants, and perfumes and soaps. Thus, this report concentrates on the commercial production and use of biphenyl and diphenyl oxide. Standards established by the Occupational Safety and Health Administration have controlled the occupational exposure to biphenyl and diphenyl oxide; however, large quantities of these chemicals are released to the external environment, particularly to waste treatment facilities which may utilize chlorine disinfection. Laboratory studies indicate that the biphenyl nucleus can undergo chlorination to various chlorobiphenyl isomers during treatment chlorine disinfection.