CAS Number: 91-20-3 . Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE. Larger volumes of naphthalene are used as a chemical intermediate to produce other chemicals. Naphthalene D8 10 microg/mL in Cyclohexane. The hydrogenated naphthalenes tetrahydronaphthalene (tetralin) and decahydronaphthalene (decalin) are used as low-volatility solvents. 218 °C Alfa Aesar: 424 F (217.7778 °C) NIOSH QJ0525000 218 °C OU Chemical Safety Data (No longer updated) More details: 218 °C Alfa Aesar A13188, 33347: 218 °C Oakwood 240561: 218 °C LabNetwork LN00194168: 218 °C FooDB FDB000954: 423-425 F / 760 mmHg (217.2222-218.3333 °C / 760 mmHg) Wikidata Q179724 424 F / 760 mmHg (217.7778 °C / 760 mmHg) Wikidata Q179724 In a sealed container containing naphthalene pellets, naphthalene vapors build up to levels toxic to both the adult and larval forms of many moths that attack textiles. (In organic chemistry, rings are fused if they share two or more atoms.) Naphthalene-1-sulphonic acid. The carbon atoms in the chemical structure of naphthalene are … Chemical Formula: C 10 H 8. click here for details. Naphthalene D8 2000 microg/mL in Methyl-tert-butyl ether In 1819–1820, at least two chemists reported a white solid with a pungent odor derived from the distillation of coal tar. To use all the functions on Chemie.DE please activate JavaScript. 2.1.2 InChI. Humans, particularly children, have developed this condition, known as hemolytic anemia, after ingesting mothballs or deodorant blocks containing naphthalene. Your browser does not support JavaScript. Unlike highly-symmetrical aromatics, such as benzene, the carbon-carbon bonds in naphthalene are not of the same length. For beta substitution, the intermediate has only six resonance structures, and only two of these are aromatic. Naphthalene-d8, analytical standard. The crude naphthalene resulting from this process is about 95% naphthalene by weight, often refered to as 780C (melting point). Substance identity Substance identity. 2.1.1 IUPAC Name. Symptoms include fatigue, lack of appetite, restlessness, and pale skin. It is volatile, forming a flammable vapor, and readily sublimes at room temperature. Naphthalene. Naphthalene's most familiar use is as a household fumigant, such as in mothballs (although 1,4-dichlorobenzene (or p-dichlorobenzene) is now more widely used). The structure of two fused benzene rings was proposed by Emil Erlenmeyer in 1866,[2] and confirmed by Carl Graebe three years later. (In organic chemistry, rings are fused if they share two or more atoms.) IUPAC name/number. The structure of two fuse… In North America, coal tar producers are Koppers Inc. and Recochem Inc., and petroleum-derived produer is Advanced Aromatics, L.P.. IUPAC Standard InChIKey: UFWIBTONFRDIAS-UHFFFAOYSA-N; CAS Registry Number: 91-20-3; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. Naphthaline's chemical formula was determined by Michael Faraday in 1826. Decahydronaphthalene (the fully saturated analog of naphthalene). Find out how LUMITOS supports you with online marketing. When the U.S. National Toxicology Program exposed male and female rats and mice to naphthalene vapors on weekdays for two years,[3] male and female rats exhibited: evidence of carcinogenic activity, based on increased incidences of adenoma and neuroblastoma of the nose, female mice exhibited some evidence of carcinogenic activity, based on increased incidences of alveolar and bronchiolar adenomas of the lung, and male mice exhibited no evidence of carcinogenic activity. [1]. Naphthalene IUPAC name: Naphthalene Other names Tar Camphor, White Tar, Moth Flakes Identifiers CAS number: 91-20-3: RTECS number: QJ0525000 SMILES: c1cccc2c1cccc2: Properties Molecular … Naphthalene (not to be confused with naphtha), also known as naphthalin, naphthaline, tar camphor, white tar, or albocarbon, is a crystalline, aromatic, white, solid hydrocarbon, best known as the traditional, primary ingredient of mothballs. For example, whereas both benzene and naphthalene react with chlorine in the presence of a ferric chloride or aluminium chloride catalyst, naphthalene and chlorine can react to form 1-chloronaphthalene even without a catalyst. From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but today petroleum-derived naphthalene represents only a minor component of naphthalene production. A naphthalene molecule is composed of two fused benzene rings. DTXSID10894058. In industrial practice, distillation of coal tar yields an oil containing about 50% naphthalene, along with a variety of other aromatic compounds. Other naphthalene-derived chemicals include alkyl naphthalene sulfonate surfactants, naphthalene sulfonate polymer plasticizer and the insecticide carbaryl.

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