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Naphthalene in road tars

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Published by G.P.O. in Washington .
Written in English


  • Naphthalene.,
  • Roads, Tarred.

Book details:

Edition Notes

Statementby Prévost Hubbard and Clifton N. Draper.
SeriesCircular / U.S. Department of Agriculture, Office of Public Roads -- no. 96, Circular (United States. Bureau of Public Roads) -- no. 96.
ContributionsDraper, Clifton N., United States. Bureau of Public Roads.
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL14029867M

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Naphthalene, the simplest of the fused or condensed ring hydrocarbon compounds composed of two benzene rings sharing two adjacent carbon atoms; chemical formula, C 1 0 H is an important hydrocarbon raw material that gives rise to a host of substitution products used in the manufacture of dyestuffs and synthetic resins. Naphthalene is the most abundant single . Naphthalene is a white, volatile, solid polycyclic hydrocarbon with a strong mothball odor. Naphthalene is obtained from either coal tar or petroleum distillation and is primarily used to manufacture phthalic anhydride, but is also used in moth re to naphthalene is associated with hemolytic anemia, damage to the liver and neurological system, cataracts and . Naphthalene is released to the air from the burning of coal and oil and from the use of mothballs. Coal tar production, wood preserving, and other industries release small amounts. (1) Typical air concentrations of naphthalene in cities are about parts per billion (ppb). (1) Naphthalene has also been detected in tobacco smoke. (1). Naphthalene, a miscellaneous indoor toxicant, occurs in tars, petroleum, tanning preparations, and mothballs (Witschi and Last, ; Oehme and Kore, ). It is also released in cigarette smoke and from termites parasitizing houses. The lowest canine lethal dose is mg/kg, but cats are more sensitive. Mothballs weigh near or 4 g.

T triple (K) Reference Comment; Chirico, Knipmeyer, et al., Uncertainty assigned by TRC = K; TRC De Kruif, Kuipers, et al., highway inspectors handbook by prvost hubbard at - the best online ebook storage. naphthalene in road tars volume 1 5/ 5. Create an account and send a request for reading to other users on the Webpage of the book! register now. On Read. The site is set up for educational purposes. We respect copyright and give users the 4/5(10). Bituminous Materials: Asphalts, Tars, and Pitches: Coal tars and pitches light oil light water-gas liquid low-temperature manufacture materials method million gallons mixture molecular weight naphtha naphthalene oil-gas pavement penetration petroleum phenol pipe pitch production plants plasticized polymers primer properties pyridine.   This Lecture talks about Naphthalene. For the Love of Physics - Walter Lewin - - Duration: Lectures by Walter Lewin.

Naphthalene is the most simple, commonly found, and most water-soluble PAHs in the environment. It is produced from coal tar fraction by crystallization and distillation. It is often used as dispersants in natural and synthetic rubbers, in the production of naphthalene sulfonate superplasticizers for concrete, in paints, tanning agents in the leather industry, in the . Also known as: White Tar, Tar Camphor, Mothballs, Moth Flakes, Naphthalin Chemical reference number (CAS): Naphthalene is either a white solid or a liquid with a strong odor like mothballs. It’s used to make dyes, explosives, plastics, lubricants, and is found naturally in crude oil. It is also found in coal tar wastes at former manufactured gas plants. Coal tars were .   Naphthalene is an organic compound with formula C This video is targeted to blind users. Attribution: Article text available under CC-BY . Naphthalene DRAFT - January Long-term Health Effects of Exposure to Naphthalene Background and status of Naphthalene as a Toxic Air Contaminant and Potential Carcinogen Naphthalene (CAS Registry Number: ) is a natural constituent of coal tar, comprising approximately 11% of that material by weight (HSDB, ). It is present inFile Size: KB.