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Topic: Anthracene

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In the News (Sat 20 Jul 19)

  Anthracene - LoveToKnow 1911   (Site not responding. Last check: 2007-09-17)
ANTHRACENE (from the Greek civOpa, coal), C 14 H 10, a hydrocarbon obtained from the fraction of the coal-tar distillate boiling between 270° and 400° C. This high boiling fraction is allowed to stand for some days, when it partially solidifies.
Numerous sulphonic acids of anthracene are known, a monosulphonic acid being obtained with dilute sulphuric acid, whilst concentrated sulphuric acid produces mixtures of the anthracene disulphonic acids.
By the action of sodium amalgam on an alcoholic solution of anthracene, an anthracene dihydride, C14H12, is obtained, whilst by the use of stronger reducing agents, such as hydriodic acid and amorphous phosphorus, hydrides of composition C14H16 and C14H24 are produced.
35.1911encyclopedia.org /Anthracene   (368 words)

 anthracene - HighBeam Encyclopedia   (Site not responding. Last check: 2007-09-17)
Anthracene is insoluble in water but is quite soluble in carbon disulfide and somewhat soluble in ethanol, methanol, benzene, chloroform, and other organic solvents.
The molecular structure of anthracene consists of three benzenelike rings joined side by side; it is thus an aromatic compound.
It is the first member of the anthracene series, a group of aromatic hydrocarbons that are structurally related to it and have the general formula C
www.encyclopedia.com /doc/1E1-anthrace.html   (262 words)

 RAIS: Anthracene (120-12-7)
The efficiency of intestinal absorption of anthracene in the rat appears to be influenced by the presence of bile in the intestine.
The intraperitoneal LD for the mouse is > 430 mg/kg (Salamone, 1981).
Anthracene 1,2-oxide: Synthesis and role in the metabolism of anthracene by mammals.
rais.ornl.gov /tox/profiles/anthrace.shtml   (3749 words)

 Anthracene (IARC Summary & Evaluation, Volume 32, 1983)   (Site not responding. Last check: 2007-09-17)
Anthracene was tested for carcinogenicity in mice by skin application in several studies, and in the mouse-skin initiation-promotion assay in two studies.
Anthracene was negative in an assay for differential survival using DNA repair-proficient/-deficient strains of Bacillus subtilis.
Anthracene is present as a major component of the total content of polynuclear aromatic compounds in the environment and has been produced in commercial quantities.
www.inchem.org /documents/iarc/vol32/anthracene.html   (287 words)

 Anthracene - Wikipedia, the free encyclopedia
In chemistry, anthracene is a solid polycyclic aromatic hydrocarbon consisting of three benzene rings derived from coal-tar.
A classis method for the preparation of anthracene in the laboratory is by cyclodehydration of o-methyl- or o-methylene-substituted diarylketones in the so-called Elbs reaction (Karl Elbs, 1858-1933).
Anthracene is used as a scintillator for detectors of high energy photons, electrons and alpha particles.
en.wikipedia.org /wiki/Anthracene   (336 words)

 Highbeam Encyclopedia - Search Results for anthracene
anthracene, C 14 H 10, solid organic compound derived from coal tar.
It melts at 218°C and boils at 354°C. When pure it is colorless and has a violet fluorescence; it darkens when exposed to sunlight.
Anthracene is insoluble in water but is quite soluble in carbon disulfide and somewhat soluble in ethanol,
www.encyclopedia.com /SearchResults.aspx?Q=anthracene   (367 words)

 Napthalene is a polyaromatic hydrocarbon with two fused benzene rings with the chemical formula of C10H8
In New York State, a mixture of phenanthrene and anthracene tar is used to coat water storage tanks to prevent rust (17).
Anthracene is released into the environment from a variety of sources.
Anthracene is not currently considered a toxic substance, and does not appear on the RCRA hazardous waste lists.
entweb.clemson.edu /pesticid/document/leeorg1/leeorg4.htm   (4504 words)

 EWG Report || Strengthening the TRI   (Site not responding. Last check: 2007-09-17)
Anthracene is a pollutant from the incomplete combustion of fossil fuels.
Volatilization of anthracene from dry soil surfaces is not expected to be an important fate process based on its extrapolated vapor pressure.
Anthracene is expected to volatilize slowly from moist soil surfaces based upon its measured Henry's Law constant of 4.88X10-5 atm-cu m/mole.
ewg.org /reports/cheminventory/utilities/PBT_retrieve.php?CAS=120127   (840 words)

 Process for separating alpha and internal olefins - Patent 4946560
Anthracene is utilized in the instant process to form the adduct primarily with the alpha olefin in the feedstock.
The process of the instant invention is basically a three step process wherein (a) anthracene is reacted with the olefin to form an adduct, (b) the adduct is separated from the reaction mixture and (c) the adduct is pyrolized to release the olefin and regenerate the anthracene.
The solid anthracene and dodecene-anthracene adduct were pyrolyzed in a nitrogen flow-pot heated to 300.degree.-350.degree.
www.freepatentsonline.com /4946560.html   (1897 words)

 NDCRT Home Page
Insufficient data are available to evaluate or predict the short-term effects of anthracene to birds or land animals.
Insufficient data are available to evaluate or predict the long-term effects of anthracene to plants, birds, or land animals.
The concentration of anthracene found in fish tissues is expected to be much higher than the average concentration of anthracene in the water from which the fish was taken.
www.ndcrt.org /data/EPA_Chemical_Fact_Sheets/Anthracene.html   (2045 words)

 Spectrum Laboratories : Chemical Fact Sheet - Cas # 120127
In air, anthracene is expected to be present both in the vapor and the particle sorbed state.
Anthracene was found in 2 of 4 Mississippi River water samples at concn of 3 and 4 ng/L(9).
Anthracene was emitted at an average concn of 240 and 140 ug/kg during
www.speclab.com /compound/c120127.htm   (1492 words)

 Know the Facts of PAH Anthracene
Anthracene has been identified in surface and drinking water, ambient air, exhaust emissions from internal combustion engines, smoke of cigarettes and cigars, and in smoked foods and edible aquatic organisms.
Additionally, anthracene has also been associated with headache, nausea, loss of appetite, inflammation of the gastrointestinal tract, slow reactions, and weakness.
Anthracene is often found in the aquatic environment.
www.weitzlux.com /pahlawsuit/anthracene_403059.html   (273 words)

 Acute mortality of anthracene contaminated fish exposed to sunlight
Acute mortality of bluegill sunfish (Lepomis macrochirus) dosed with anthracene at 12.7 µg/l and exposed to natural sunlight conditions was observed during a study of anthracene fate in outdoor channel microcosms.
After 144 h depuration in darkness, fish anthracene concentrations had decreased to pre-exposure concentrations and no mortality was observed when fish were subsequently exposed to sunlight.
This observed photo-induced toxic response in anthracene contaminated fish may represent a significant environmental hazard of polycyclic aromatic hydrocarbons in aquatic environments.
www.uga.edu /srel/Reprint/0808.htm   (240 words)

 Characterization of Multiple-Substrate Utilization by Anthracene-Degrading Mycobacterium frederiksbergense LB501T -- ...
Ratios of the cyclopropyl-branched and the unsaturated fatty acids (A) and the ratios of saturated straight-chain and unsaturated fatty acids (B) as a function of the percentage of anthracene carbon in biomass of M.
of anthracene versus glucose, this discrepancy of 40% is relatively
of mixtures of the hydrophobic substrate anthracene and the
aem.asm.org /cgi/content/full/69/10/6133   (3855 words)

The chemical structure of Anthracene is shown at the right.
This is a graph of the molar extinction coefficient of Anthracene dissolved in cyclohexane.
This is the fluorescence emission spectrum of Anthracene dissolved in cyclohexane.
omlc.ogi.edu /spectra/PhotochemCAD/html/anthracene.html   (186 words)

 Degradation of Anthracene by Mycobacterium sp. Strain LB501T Proceeds via a Novel Pathway, through o-Phthalic Acid -- ...
Proposed degradation pathway for anthracene by Mycobacterium sp.
In conclusion, the observation of the degradation of anthracene
NAH plasmid-mediated catabolism of anthracene and phenanthrene to naphthoic acids.
aem.asm.org /cgi/content/full/69/1/186   (2675 words)

 Class Definition for Class 552 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
Compounds wherein the anthracene configured ring system has halogen, sulfur, oxygen, nitrogen or additional carbon bonded directly to a beta position.
Compounds wherein the anthracene configured ring system has halogen, sulfur, oxygen, nitrogen or additional carbon bonded directly at the beta position (i.e., 2-, 3-, 6- or 7- position).
Compounds wherein the anthracene configured ring system is a part of a polycyclo ring system which has at least four cyclos.
www.uspto.gov /go/classification/uspc552/defs552.htm   (2878 words)

 anthracene — Infoplease.com
It is readily oxidized to form anthraquinone, the parent compound of the
The molecular structure of anthracene consists of three benzenelike rings joined side by side; it is thus an
UV fluorescence monitoring of the mixing of molten polymers in a batch mixer.
www.infoplease.com /ce6/sci/A0804201.html   (296 words)

 Process of purifying and producing high purity aromatic polycarboxylic acids and derivatives thereof - Patent 6291707
The method as claimed in claim 1, wherein daid crude organic, or said derivative thereof, is dissolved by thermal agitaing under electromagnetic waves.
The method as claimed in claim 7, wherein said crude organic acid is a terephthalic acid or an isophthalic acid.
The method as claimed in claim 35, wherein the crude organic acid, or the derivative thereof, is dissolved in the base compound and a dissolving solvent.
www.freepatentsonline.com /6291707.html   (12762 words)

 Anthracene oil market review in Russia/CIS.
the main end-users of anthracene oil, their projects.
To order the study please fill in the form.
The report will be submitted to you through e-mail in Word or Adobe format just after your pre-payment of the invoice.
www.infomine.ru /eng/produc/chem/coke/anthr.shtml   (48 words)

 Orgo 3D Web : Chapter 13 : Anthracene and Phenanthrene   (Site not responding. Last check: 2007-09-17)
Three aromatic rings can be fused in two ways.
Both anthracene (linear) and phenanthrene (angular) are planar.
What happens as we continue the process of fusion all the way to six benzene rings?
www.wwnorton.com /orgo3dweb/ch13/13_anthracene.htm   (43 words)

 anthracene - Synonyms from Thesaurus.com
Would you like to search the dictionaries, search the encyclopedias, or search the Web for anthracene?
Perform a new search, or try your search for "anthracene" at:
HighBeam Research - 32 million documents from leading publications
thesaurus.reference.com /browse/anthracene   (44 words)

 Anthracene oil - toxicity, ecologicial toxicity and regulatory information
Anthracene oil - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information
There may be other diseases and chemicals that have similar symptoms.
If the victim has collapsed or is unconscious, call 911.
www.pesticideinfo.org /Detail_Chemical.jsp?Rec_Id=PC35925   (803 words)

 Anthracene oil Registration
Anthracene oil - Registration, import consent and bans
Note: See Working with the Information on this Page section below for important notes about this data.
For detailed chemical information see the chemical detail page.
www.pesticideinfo.org /Detail_ChemReg.jsp?Rec_Id=PC35925   (371 words)

 EWG Investigation | U.S. Tap Water Quality Database   (Site not responding. Last check: 2007-09-17)
EPA has not established a maximum legal limit in tapwater for these contaminants
Naphthalene, Acenaphthylene, Acenaphthene, Fluorene, Phenanthrene, Anthracene, Dimethylphthalate, Diethylphthalate, Fluoranthene, Pyrene, Di-n-butylphthalate, Butyl Benzylphthalate, Chrysene, Benzo[a]anthracene, Indeno[1,2,3-cd]pyrene, Dibenz[a,h]anthracene, Benzo[g,h,i]perylene, Benzo[b]fluoranthene & Benzo[k]fluoranthene
Note: Some pollutants may be in more than one category.
www.ewg.org /tapwater/yourwater/system.php?pwsid=AR0000388   (753 words)

Place weighed reagents in a conical vial; add xylene
Heat anthracene and maleic anhydride at reflux for 30 minutes
Cool the reaction mixture in an ice bath
www.neiu.edu /~jhramire/Diels-Aldler/prelab.htm   (76 words)

 Safety (MSDS) data for anthracene   (Site not responding. Last check: 2007-09-17)
Click here for data on anthracene in student-friendly format, from the HSci project
Synonyms: anthracin, paranaphthalene, green oil, tetra olive N2G
If not, this page is a copy made by some other person and we have no responsibility for it.
physchem.ox.ac.uk /MSDS/AN/anthracene.html   (239 words)

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