Recent reports indicate substantial differences in the congener composition among aroclor lots and hence their biologic effects. Pcbs made in the united states were marketed under the trade name aroclor and most are identified by a fourdigit numbering code in which the first two digits indicate that the parent molecule is a biphenyl and for the 1200 series aroclors the last two digits indicate the chlorine content by weight. Differences between the pcb aroclors oreilly, talbot. Soil, water and air jim occhhialini jim okun patricia mcisaac. Aroclor 1016 was produced with a chlorine content of 41% by fractional distillation of arochlor 1242, a process that excluded more highly chlorinated congeners, which have higher boiling points. Consensus of polychlorinated biphenyl aroclor 1260 11096825. Development of advisory levels for polychlorinated. Comparison of the compositions of aroclor 1242 and aroclor 1016.
Other companies are charging thousands of dollars to set up accounts and give you access to their msds online database. Excerpt from erg guide 171 substances low to moderate hazard. Apr 03, 2020 srm 3080 aroclor 1260 in transformer oil transformer oil, pcb, water, voc, vocs, epa, epa organic compounds related to water analysis, aroclor, aroclor 1260 certificate msds table add material to cart certificate. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters 150 feet for liquids and at least 25 meters 75 feet for solids.
Pcb 118 mono ortho was chosen because it was one of the coplanar congeners with the highest composition in aroclor 1260 0. Aroclor 1254 is one of several commercial pcb mixtures that were marketed between the 1930s and 70s. Polychlorinated biphenyl mixture with 68% chlorine. Program and regulatory information about this substance, including links to epa applicationssystems, statuesregulations, or other sources that track or regulate this substance. Polychlorinated biphenyls pcbs are persistent organic pollutants associated with nonalcoholic fatty liver disease nafld in epidemiologic studies. Allinone computers help conserve space while reducing the cable clutter that can be created by a traditional cpu chassis and other external hardware enclosures. Aroclor 1260 toxicity, ecological toxicity and regulatory. Aug 01, 2014 aroclor 1260 activation of the human aryl hydrocarbon receptor ahr coplanar pcbs pcbs 126 and 77 activate ahr in rodents and hence are classified as dioxinlike pcbs.
Hepatocellular tumors developed in 95% of the female rats and 15% of the male rats. Aroclor 1260 in transformer oil other means of identification. Your new online msds binder is a place for you to store the material safety data sheets you need to deploy. Aroclor 1260 is a polychlorinated biphenyl pcb mixture containing approximately 38% c 12 h 4 cl 6, 41% c 12 h 3 cl 7, 8% c 12 h 2 cl 8, and 12% c 12 h 5 cl 5 with an average chlorine content of 60% usaf 1989. Travers and the classic walt disney screenplay, the story of the banks family and their magical nanny comes to life on stage in a colorful, sweeping new musical. Dec 19, 2011 there were nine common pcb aroclor mixtures 1221, 1232, 1242, 1016, 1248, 1254, 1260, 1262, and 1268, and each of them has a distinctive gas chromatographic pattern.
Cas 11096825 arochlor 1260, f112 polychlorinated biphenyl aroclor 1260. Aroclor was the brand name monsanto used for its pcb mixtures. Regarding body composition, there were insignificant trends towards increased percent body fat with aroclor 1260 14. Msds arochlor 1260, f112 polychlorinated biphenyl aroclor.
Substance and source identification product identifier srm number. Santa clara, ca 95636 application note abstract a unique method has been developed to. Analytical results showed that pcbs in the soil remained essentially the same, resembling the composition of standard aroclor 1260 the coefficient of determination between the pcbs in soil and standard aroclor 1260 was 0. Recently, as i was digesting data and researching literature to prepare for my umass soils conference presentation this fall, i discovered something interesting about aroclor 1254 that i hadnt known. For more information about the substance, you may click one of the links below to take you to the relevant section. Srm 3080 aroclor 1260 in transformer oil transformer oil, pcb, water, voc, vocs, epa, epa organic compounds related to water analysis, aroclor, aroclor 1260 certificate msds table add material to cart certificate. Health data from inhalation exposure acgih tlvamerican conference of governmental and industrial hygienists threshold limit value expressed as a. Use water spray or fog for cooling exposed containers. Two other sampling events showed nondetect result for aroclor 1260 at tl1is well location mw359b. As you likely know, the percent of chlorine in an aroclor is indicated by the last 2 digits in the model number. Male c57bl6j mice were fed control diet or 42% high fat diet hfd and exposed to aroclor 1260 20 mgkg or 200 mgkg in corn oil for 12 weeks.
A handbook for determining the sources of pcb contamination. Aroclor 10161260 standard safety data sheet according to regulation e c no. Avoid r eject firefighting water to enter environment. Recommended use of this material and restrictions of use this standard reference material srm is a solution of ar oclor 1260 in transformer oil. Pcb congener composition of aroclors a detailed analyses of the pcb congener distributions present in aroclors 1016, 1242, 1248, 1254, and 1260. It is a myth that the first two digits referred to the number of carbon atoms. Feb 01, 1979 comparison of the compositions of aroclor 1242 and aroclor 1016. Analyzing pcbs in source materials and environmental media. Reactivity profile of polychlorinated biphenyl aroclor 1260 11096825. Analysis of seven bulk samples of the mineral oil indicated that aroclor 1260 was present in all samples, ranging from 17 to parts per million parts of oil. Pcb congener composition in a sediment sample collected on the west 4c2 and east sb23 side of hunters point shipyard south basin, and the pcb composition in a mixture of aroclors 1254 1260 and only aroclor. The purpose of this study was to evaluate the hepatic effects of a pcb mixture, aroclor 1260, whose composition mimics human bioaccumulation patterns, in a mouse model of dietinduced obesity dio. Adult sea bass fed with the equivalent of actual environmental concentrations of the mixture of aroclor 1260 and 1254 only showed reduced muscle t 3 levels, with no significant changes in muscle t 4 levels and thyroid histology. Aroclor 1242 had approximately 150 ppb of chlorinated dibenzofurans, of which 43 o was the toxic 2,3,7,gtetrachloro isomer.
The physical properties varied significantly between the aroclors. Aroclor 1221 is a commercial mixture of pcbs with an average chlorine content of 21%. Table of aroclors casrn iupac name type 12674112 aroclor 1016 mixture 147601874 aroclor 1210 mixture 151820278 aroclor 1216 mixture 11104282 aroclor 1221 mixture 37234405 aroclor 1231 mixture 11141165 aroclor 1232 mixture 728897 aroclor 1240 mixture 53469219 aroclor 1242 mixture. For instance aroclor 1221 would be 21% chlorine by mass and aroclor 1260 would be 60% chlorine by mass. Polychlorinated biphenyl aroclor 1260 supplier casno.
Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Aroclor 1260 solution certified reference material. Aroclor 1260 identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information note. Aroclor 1242 had approximately 150 ppb of chlorinated dibenfurans, of which 43% was the toxic 2,3,7,9tetrachloro isomer. Polychlorinated biphenyl mixture with 60% chlorine. Simple aromatic halogenated organic compounds are very unreactive. The information in cameo chemicals comes from a variety of data sources. Dale published november 2007 to be presented a1 wm 2008 phoenix wm symposia, inc. The observed variations of the cluster compositions with vapor phase composition.
The 1100 series was a crude pcb material which was distilled to create the 1200 series pcb product. Generally, the last two digits of an aroclors number indicates the percent chlorine in the mixture. Production, importexport, use, and disposal chemical company produced aroclors 1221, 1232, 1242, 1248, 1254, 1260, 1262, and 1268. Nist srm order request system srm 3080 aroclor 1260 in. Clophen a60 is almost identical in composition to aroclor 1260 iarc 1978, while clophen a30 appears to be similar in structure to aroclor 1016. Aroclor 1260 one detection of aroclor 1260 occmted in past sampling events.
Find aroclor 1260 related suppliers, manufacturers, products and specifications on globalspec a trusted source of aroclor 1260 information. Aroclor 1260 is a polychlorinated biphenyl pcb mixture containing approximately 38% c 12h 4cl 6, 41% c 12h 3cl 7, 8% c 12h 2cl 8, and 12% c 12h 5cl 5 with an average chlorine content of 60% usaf 1989. In general, the first two digits refer to the product series as designated by monsanto e. The hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. Evaluation of aroclor 1260 exposure in a mouse model of. Sections i health hazard assessments for noncarcinogenic effects and. Generally, the last two digits of an aroclor s number indicates the percent chlorine in the mixture.
Aroclor 1254 is a widely studied commercial polychlorinated biphenyl pcb mixture which, by definition, contains 54% chlorine by weight. P210 keep away from heat, hot surfaces, sparks, open flames and other ignition sources. Thus, aroclor 1260 is a 1200 series product and contains 60% chlorine by mass. The identity of the 209 pcb congeners is shown in table 42. Pcbs are inert, thermally and physically stable, and have dielectric properties. Evidence for substantial degradation of polychlorinated biphenyl mixtures aroclor 1242, 1254, and 1260 by the white rot fungus phanerochaete chrysosporium, based on congenerspecific gas. Exhibit a projectspecific pcb aroclor analytical method. Predicted data is generated using the us environmental protection agencys episuite. Pdf degradation of polychlorinated biphenyl mixtures.
The current hub september 2019 by the currenthub issuu. These were sold under trade names followed by a fourdigit number. Identification and quantitation of pcb aroclor mixtures in. Pcb congener composition in a sediment sample collected on the west 4c2 and east sb23 side of hunters point shipyard south basin, and the pcb composition in a mixture of aroclors 12541260 and only aroclor. This light yellow viscous liquid is a particularly highly chlorinated pcb mixture which, by definition, contains 54% chlorine by weight. Pcb congener composition of aroclors a detailed analyses of the pcb congener distributions present in aroclors 1016, 1242, 1248, 1254, and 1260 note that the most abundant homologue groups are the di and trichlorinated biphenyls for the low chlorinated aroclors 1016 and 1242. This congener composition with the lowest chlorinated congeners on the left and the highest chlorinated. World health organization, internation agency for research on cancer,lyon, france single copies can be ordered from who publications centre u. Concentrations of polychlorinated biphenyls in soil and. Hepatocellular carcinoma was the most frequently found lesion in animals sacrificed at the end of the experiment, observed in 2, 3, and 61% of the animals in the control, clophen a30 and clophen.
Aroclor 1260 was a second hit in the conversion of dietinduced hepatic steatosis, to the more advanced steatohepatitis in a chronic mouse exposure model. Dale walker agilent gcms applications engineer aroclor 1262. Evaluation of aroclor 1260 exposure in a mouse model of diet. Since 1970, nine pcb mixtures aroclor 1016, 1221, 1232, 1242, 1248, 1254, 1260, 1262, and. Disruption of the thyroid system by the thyroiddisrupting. Human receptor activation by aroclor 1260, a polychlorinated. The composition of commercial clophen a60 and phenoclor dp6 is similar to aroclor 1260. Strain cbdb1 extensively dechlorinates the commercial polychlorinated biphenyl mixture aroclor 1260. Polychlorinated biphenyl exposures differentially regulate. Chemidplus 53469219 aroclor 1242 similar structures. See working with the information on this page section below for important notes about this data. Nucleation and atmospheric aerosols 1996 sciencedirect.
Walker and fred feyerherm agilent technologies, inc. Three of 11 wipe samples had aroclor 1260 present at greater than the. It was observed that many of the soil samples, some of the dust samples, as well as transformer oil samples have positive component scores in pc 1, similar to aroclor 1260. The chemical identity of the aroclors is summarized in table 41. For a variety of other portable computer designs, browse laptops and tablets. The complete polychlorinated biphenyl compositions of two american products, aroclor 1242 and its more modern replacement, aroclor 1016, have been determined by gasliquid chromatography glc on twelve liquid phases of differing selectivities. Comparison of the compositions of aroclor 1242 and aroclor. Measuring pcbs as aroclors relies on there being a relatively fixed composition of pcb congeners in the mixture. Pc 1 could explain 39 % of the congener variations within the data set and was driven positively by pcb 153 101 118 8, with eigenvectors of 0. Animal limited evidence imemdt iarc monographs on the evaluation of carcinogenic risk of chemicals to man. Identification and quantitation of pcb aroclor mixtures in a single run using the agilent 7000b triple quadrupole gcms authors dale r. Aroclor 1254 aroclor 1260 additionally aroclors 1262 and 1268. Aroclor 1260 is a commercial mixture of pcbs with an average chlorine content of 60%.