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Topic: Acenaphthylene

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Ammonia

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	IRAS 05341+0852 3 micron Emission Carrier
		Acenaphthylene and acenaphthene were chosen as precursors in the experiment because these molecules have a structure that can be described as a keystone in a process in which carbon atoms in a stellar wind condense into PAH species.
		For acenaphthylene the melting point is 91°C and the boiling point is 280°C, while that for acenaphthene is 94°C and 279°C. Hydrogen gas is first introduced into the reactor system at several tens of torr pressure and then pumped down to operational pressure.
		Going a step beyond naphthalene to acenaphthylene and acenaphthene, which have the keystone molecular structure in Keller's model, appears to have made up for that deficiency, which is present in all laboratory experiments that attempt to mimic nature on the cosmic scale.
	ecf.hq.eso.org /~ralbrech/sepdec97apjl/5177.html (2290 words)

	Spectrum Laboratories : Chemical Fact Sheet - Cas # 208968
		Acenaphthylene is expected to exist entirely in the vapor-phase in ambient air.
		at Pensacola, FL are responsible for an acenaphthylene concn of 0.05 and 0.03 mg/l at ground
		EFFL: Acenaphthylene was identified as a stack emission and a component of grate and fly
	www.speclab.com /compound/c208968.htm (1005 words)

	EWG Investigation \| U.S. Tap Water Quality Database
		Acenaphthylene is a component of crude oil and coal tar; and a pollutant from petroleum refining, coal tar distillation, municipal waste water treatment facilities and municipal waste incinerators.
		Because Acenaphthylene is unregulated in tap water, no violations are recorded in EPA's violations database, the Safe Drinking Water Information System.
		Under the federal tap water law, water suppliers are not required to routinely test for Acenaphthylene, and any level is legal in tap water.
	www.ewg.org /tapwater/contaminants/contaminant.php?contamcode=2260 (331 words)

	Acenaphthylene (CASRN 208-96-8), IRIS, Environmental Protection Agency
		No tumors were observed in a lifetime study, when 0.25% acenaphthylene (purity not specified) was applied to the skin (dose, frequency and duration not stated) of mice (sex and strain not specified) (Cook, 1932).
		In the series of experiments, however, the dermal application of other polycyclic aromatic hydrocarbons did result in the formation of mouse skin tumors.
		Acenaphthylene (1 mM) yielded positive results in a Salmonella typhimurium forward mutation assay (Kaden et al., 1979) and was not positive in a Salmonella typhimurium TA98 and TA100 in the presence of hepatic homogenates (Bos et al., 1988).
	www.epa.gov /iris/subst/0443.htm (648 words)

	D4657-92(1998) Standard Test Method for Polynuclear Aromatic Hydrocarbons in Water (Withdrawn 2005)
		The following compounds may be determined by this test method: acenaphthene, acenaphthylene, anthracene, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(ghi)perylene, benzo(k)fluoranthene, chrysene, dibenzo(ah)anthracene, fluoranthene, fluorene, indeno(1,2,3-cd)pyrene, naphthalene, phenathrene, and pyrene.
		Formerly under the jurisdiction of Committee D19 on Water, this test method was withdrawn in January 2005.
		Additional PAHs may also be determined; however, the analyst should demonstrate that the test method is in fact applicable to the specific PAH(s) of interest before applying it to sample analysis.
	www.astm.org /DATABASE.CART/REDLINE_PAGES/D4657.htm (436 words)

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		acenaphthylene~ ?@? Wastewater ?GC/MS½@ @@A@:~ Að? B-~ CA@;n/c
		acenaphthylene~ ?'À@ ?Groundwater ?GC/MS D~ @$@ :~ Að? B-~ C$@ ;n/c
		acenaphthylene ?610/8310 ?Waste/Groundwater ?HPLC½ @Àl@@7@ :~ Að? B-~ C7@ ;n/c
	www.ecy.wa.gov /programs/tcp/policies/pql_w.xls (4466 words)

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