
1) Hazardous air pollutant 2) Hydrocarbon
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https://www.crosswordclues.com/clue/naphthalene

Naphthalene is an organic compound with formula {chem|C|10|H|8}. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene`s structure consists of a fused pair of benzene rings. It is best ....
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http://en.wikipedia.org/wiki/Naphthalene

• (n.) A white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. • (n.) A white crystalline aromatic hydrocar...
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http://thinkexist.com/dictionary/meaning/naphthalene/

the simplest of the fused or condensed ring hydrocarbon compounds composed of two benzene rings sharing two adjacent carbon atoms; chemical formula, ... [5 related articles]
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http://www.britannica.com/eb/a-z/n/7

C10H8 Molar mass: 128.17052
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http://www.convertunits.com/molarmass/Naphthalene

<chemistry> A white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. ... <chemistry> Naphthalene red, a ye...
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http://www.encyclo.co.uk/local/20973

(naf´thә-lēn) a hydrocarbon from coal tar oil, used as a moth repellent, fungicide, and preservative; it is toxic by ingestion, inhalation, and ingestion.
Found on
http://www.encyclo.co.uk/local/21001
Naph'tha·lene noun (Chemistry) A white crystalline aromatic hydrocarbon, C
10 H
8 , analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organi...
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http://www.encyclo.co.uk/webster/N/2

Type: Term Pronunciation: naf′thă-lēn Definitions: 1. A carcinogenic and toxic hydrocarbon obtained from coal tar; used for many syntheses in industry and in some moth repellents; naphthalene can cause an attack of hemolytic anemia in people with a deficiency of glucose-6-phosphate dehydrogenase. Synonyms: naphthalin, tar camphor .....
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http://www.medilexicon.com/medicaldictionary.php?t=58778

[
n] - a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs
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http://www.webdictionary.co.uk/definition.php?query=naphthalene

naphthalene 1. A white, volatile, monoclinic or platelike solid having a strong coal-tar odor; insoluble in water and soluble in alcohol, ether, and benzene. 2. A white, crystalline, water-insoluble hydrocarbon, usually obtained from coal tar. Used in making dyes; such as, a moth repellent (mothballs), plastics, dyes, solvents, antiseptics, and i...
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http://www.wordinfo.info/words/index/info/view_unit/1366/

a strong smelling crystalline hydrocarbon used in mothballs.
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https://www.amentsoc.org/insects/glossary/begins/with/n/
noun a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs
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https://www.encyclo.co.uk/local/20974

Solid, white, shiny, aromatic hydrocarbon obtained from coal tar. The smell of moth balls is due to their naphthalene content. It is used in making indigo and certain azo dyes, as a mild disinfectant, and as a pesticide
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https://www.encyclo.co.uk/local/21221

a white, crystalline, water-insoluble hydrocarbon, CH, usually obtained from coal tar: used in making dyes, as a moth repellant, etc.
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https://www.infoplease.com/dictionary/naphthalene
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