Name Benzene ImageFileL1 Ref chemboximage correct ?? ImageFileL1 Benzene 2D full.svg ImageSizeL1 120px ImageNameL1 Full structural formula ImageFileR1 Benzene aromatic 3D balls.png ImageSizeR1 120px ImageNameR1 Ball and stick model ImageFileL2 Benzene circle.svg ImageSizeL2 80px ImageNameL2 Simplified skeletal formula ImageFileR2 Benzene 3D vdW.png ImageSizeR2 100px ImageNameR2 Space filling model ImageName Benzene IUPACName Benzene OtherNames Benzol br cyclohexa 1,3,5 triene Section1 Chembox .... last2 Plank first2 C. last3 Erickson first3 E. last4 Pike first4 F. title Solubility of Benzene in Water ... br borazine Benzene is an organic compound organic chemical compound . It is composed of 6 carbon atoms ... C sub 6 sub Hydrogen H sub 6 sub . Benzene is a natural constituent of Petroleum crude oil , and is one of the most basic petrochemical s. Benzene is an aromatic hydrocarbon and the second n annulene ... H. Benzene is a color less and highly flammable liquid with a sweet smell. Because it is a known carcinogen ... rubber, and dyes. History Discovery The word benzene derives historically from gum benzoin , sometimes ... acid thus acquired the name benzin, benzol, or benzene. ref name rocke cite journal author Rocke, A. J. title Hypothesis and Experiment in the Early Development of Kekule s Benzene Theory journal Annals ... Faraday first isolated and identified benzene in 1825 from the oily residue derived from the production ... ref cite journal author R. Kaiser title Bicarburet of Hydrogen. Reappraisal of the Discovery of Benzene ... named the substance ph ne this is the root of the word phenol , which is hydroxylated benzene, and phenyl , which is the radical formed by abstraction of a hydrogen atom free radical H from benzene. File Historic Benzene Formulae Kekul original .png thumb left 300px Historic benzene formulae as proposed ... , isolated benzene from coal tar . Four years later, Mansfield began the first industrial scale production of benzene, based on the coal tar method. Gradually the sense developed among chemists that substances ... more details
Benzene is an aromatic hydrocarbon. Benzene or related words may also refer to Benzene data page Benzene and benzine are alternate names for gasoline in many countries Benzine can refer to petroleum ether Benzin is a song by Rammstein Benzene Convention, 1971 Benzyne , the hydrocarbon 1,2 Didehydrobenzene disambig ... more details
Benzene hexachloride is a trivial name common or vernacular name that may refer to hexachlorobenzene the chemically correct equivalent erroneously any of the isomers of hexachlorocyclohexane , in particular the gamma isomer with the common name Lindane disambig it benzene esaclorato ... more details
File Claus benzene.svg right 200px Claus benzene Claus benzene C sub 6 sub H sub 6 sub is a hypothetical hydrocarbon and an isomer of benzene ref Organic Reactions And Their Mechanisms P S Kalsi 2000 ref . It was proposed by Adolf Karl Ludwig Claus in 1867 ref A. Claus, Theoretische Betrachtungen und deren Anwendungen zur Systematik der organischen Chemie , Freiburg, 1867, p. 207 ref as a possible structure for benzene at a time when the structure of benzene was debated. The molecule can be described as a hexagon with carbon atoms positioned at the corners, with each carbon connected to its nearest ortho carbon and the two para carbons connected diametrically ref cite DOI 10.1021 ja00039a058 ref . High strain energy makes its synthesis impossible. ref cite DOI 10.1002 anie.200705775 ref clear References Reflist Category Isomerism fr Benz ne de Claus it Benzene di Claus ... more details
Unreferenced date February 2007 Chembox verifiedrevid 430465662 ImageFileL1 Deuterated benzene.svg ImageFileL1 Ref chemboximage correct ?? ImageSizeL1 121 ImageNameL1 Kekul , skeletal formula of deuterated benzene ImageFileR1 Benzene 3D vdW.png ImageFileR1 Ref chemboximage correct ?? ImageSizeR1 121 ImageNameR1 Spacefill model of deuterated benzene ImageFile2 Benzene aromatic 3D balls.png ImageFile2 Ref chemboximage correct ?? ImageSize2 121 ImageName2 Ball and stick model of deuterated benzene Section1 Chembox Identifiers CASNo 1076 43 3 PubChem 71601 PubChem Ref Pubchemcite correct pubchem ChemSpiderID 64671 ChemSpiderID Ref chemspidercite correct chemspider EINECS 214 061 8 UNNumber 1114 Beilstein 1905426 SMILES 2H c1c 2H c 2H c 2H c 2H c1 2H StdInChI Ref stdinchicite correct chemspider StdInChI 1S C6H6 c1 2 4 6 5 3 1 h1 6H i1D,2D,3D,4D,5D,6D StdInChIKey Ref stdinchicite correct chemspider StdInChIKey UHOVQNZJYSORNB MZWXYZOWSA N Section2 Chembox Properties Formula C sub 6 sub sup 2 sup H sub 6 sub MolarMass 84.1488 g mol sup &minus 1 sup ExactMass 84.084610668 g mol sup &minus 1 sup Density 0.950 g cm sup &minus 3 sup MeltingPtK 280 BoilingPtK 345 Section3 Chembox Thermochemistry HeatCapacity 152.46 J K sup &minus 1 sup mol sup &minus 1 sup Section4 Chembox Hazards EUClass Hazchem F Hazchem T RPhrases R45 , R46 , R11 , R36 38 , R48 23 24 25 , R65 SPhrases S53 , S45 NFPA H 2 NFPA F 3 NFPA R 0 FlashPt &minus 11 C Section5 Chembox Related OtherCpds Benzene Deuterated benzene C sub 6 sub D sub 6 sub , is a form called an isotopologues isotopologue of benzene C sub 6 sub H sub 6 sub in which the hydrogen atom H is replaced with deuterium heavy hydrogen isotope D . Deuterated benzene is a common solvent used in NMR spectroscopy . List of NMR solvents DEFAULTSORT Deuterated Benzene Category Deuterated solvent Organic compound stub ... more details
enzyme Name benzene 1,2 dioxygenase EC number 1.14.12.3 CAS number 9075 66 5 IUBMB EC number 1 14 12 3 GO code 0018619 image width caption In enzymology , a benzene 1,2 dioxygenase EC number 1.14.12.3 is an enzyme that catalysis catalyzes the chemical reaction benzene NADH H sup sup O sub 2 sub math rightleftharpoons math cis cyclohexa 3,5 diene 1,2 diol NAD sup sup The 4 substrate biochemistry substrates of this enzyme are benzene , nicotinamide adenine dinucleotide NADH , hydrogen ion H sup sup , and oxygen O sub 2 sub , whereas its two product chemistry products are cis cyclohexa 3,5 diene 1,2 diol and nicotinamide adenine dinucleotide NAD sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2 with NADH or NADPH as one donor, and incorporation of two atoms o oxygen into the other donor. The systematic name of this enzyme class is benzene,NADH oxygen oxidoreductase 1,2 hydroxylating . Other names in common use include benzene hydroxylase , and benzene dioxygenase . This enzyme participates in naphthalene and anthracene degradation . It has 4 cofactor biochemistry cofactors FAD , Iron , Sulfur , and Iron sulfur . References reflist 1 cite journal author Gibson DT, Koch JR, Kallio RE date 1968 title Oxidative degradation of aromatic hydrocarbons by microorganisms. I Enzymatic formation of catechol from benzene journal Biochemistry. volume 7 pages 2653&ndash 62 pmid 4298226 doi 10.1021 bi00847a031 issue 7 1.14 enzyme stub Category EC 1.14.12 Category NADPH dependent enzymes Category NADH dependent enzymes Category Flavin enzymes Category Iron enzymes Category Sulfur enzymes Category Iron sulfur enzymes Category Enzymes of unknown structure it Benzene 1,2 diossigenasi ja 1,2 ... more details
chembox verifiedrevid 432661438 ImageFile Dewar benzene edge on .PNG ImageSize 170 ImageAlt Skeletal formula ImageCaption The conjoined cyclobutene rings of Dewar benzene form an obtuse angle . ImageFile1 Dewar benzene 3D balls.png ImageSize1 170 ImageAlt1 Ball and stick model IUPACName Bicyclo 2.2.0 ... Section3 Chembox Hazards MainHazards FlashPt Autoignition Dewar benzene or bicyclo 2.2.0 hexa 2,5 diene is a bicyclic isomer of benzene with the molecular formula C sub 6 sub H sub 6 sub . The compound ... of benzene, and in fact he supported the correct structure previously proposed by August ... ref cite journal author E. E. van Tamelen , S. P. Pappas title Chemistry of Dewar Benzene. 1,2,5 Tri ... 1971 volume 93 issue 23 pages 6092 6101 doi 10.1021 ja00752a021 ref File Dewar benzene synthesis.svg 400px Dewar benzene synthesis E. E. Van Tamelen, S. P. Pappas Unlike benzene, Dewar benzene is not flat ... and reverts back to benzene with a chemical half life of two days. This thermal conversion is relatively ... author James O. Jensen title Vibrational Frequencies and Structural Determination of Dewar Benzene journal ... 236 doi 10.1016 j.theochem.2004.03.042 ref . Dewar benzene and benzene It is sometimes incorrectly claimed that Dewar proposed his structure as the true structure of benzene. In fact Dewar merely wrote the structure as one of seven possible isomers, and believed that his experiments on benzene supported ... . ref name Baker cite journal author W. Baker, D. H. Rouvray title Para Bond or Dewar Benzene? journal ... Resonance chemistry resonance contributors in the overall description of benzene. The major resonance ... have been considered as possible benzene isomers are prismane , benzvalene and Claus benzene . Prismane and benzvalene were synthesized in the 1970s Claus benzene is impossible to synthesize. ref cite DOI 10.1002 anie.200705775 ref Hexamethyl Dewar benzene Hexamethyl Dewar benzene has been prepared ... Dewar Benzene author Sami A. Shama and Carl C. Wamser collvol 7 collvolpages 256 year 1990 prep cv7p0256 ... more details
Benzene in soft drinks is of some concern due to the carcinogen ic nature of the benzene molecule. This contamination ... advocates. Benzene levels are regulated in drinking water nationally and internationally, and in bottled water in the United States, but only informally in soft drinks. The benzene results from ... under heat and light. Limit standards in drinking water Various authorities have set limits on benzene ... g kg . World Health Organization WHO 10 ppb WHO notes that benzene should be avoided whenever technically ... ng.asp?id 67104 benzene vitamin c drinks South Korea urges recall of benzene containing drinks ref ... of Benzene in Soft Drinks and Other Beverages ref European Union 1 ppb ref http eur lex.europa.eu ... Agency EPA and California have set public health goals for benzene of 0 ppb and 0.15 ppb respectively. ref http www.epa.gov safewater dwh c voc benzene.html Consumer Factsheet on Benzene ref Environmental exposure to benzeneBenzene in soft drinks has to be seen in the context of other environmental exposure. Taking the worst example found to date of a soft drink containing 87.9 ppb benzene ref name rokfda , someone drinking a 350 ml 12 oz can would ingest 31 g micrograms of benzene. While there is no justification for a soft drink to contain high levels of benzene There is a difference ... www.foodnavigator usa.com news ng.asp?n 72181 doubts hit fda Doubts hit FDA handling of benzene in soft ... see, for example, the EPA IRIS document on benzene ref Environmental Protection Agency. http www.epa.gov iris subst 0276.htm Integrated Risk Information System Benzene Accessed on November 27, 2006 ref ... 2006 11 back to benzene in soda.php more Back to benzene in soda November 27, 2006 ref The UK Food ... containing benzene at 10 g to equal the amount of benzene they would breathe from city air every ... consumers food safety topics chemicals in food benzene index.htm Benzene in flavoured drinks ref Daily personal exposure to benzene is determined by adding exposure from all sources. Air A European ... more details
Summary Information Description Synthetic route to benzene from cyclohexane Source I created this work entirely by myself. Date Jan 2009 Author User DFS454 DFS454 User talk DFS454 talk other versions none Licensing self cc by sa 3.0 GFDL Copy to Wikimedia Commons bot Fbot ... more details
Summary Information Description C13 NMR estimation for Benzene Source I created this work entirely by myself. Date March 2009 Author User DFS454 DFS454 User talk DFS454 talk other versions None Licensing self cc by sa 3.0 GFDL Copy to Wikimedia Commons bot Fbot priority true ... more details
Summary Information Description H NMR estimation for Benzene Source I created this work entirely by myself. Date March 2009 Author User DFS454 DFS454 User talk DFS454 talk other versions None Licensing self cc by sa 3.0 GFDL Copy to Wikimedia Commons bot Fbot priority true ... more details
chembox verifiedrevid 420625055 Name Benzene chromium 0 tricarbonyl ImageFileL1 Benzenetricarbonylchromium.JPG ImageSizeL1 150px ImageFileR1 benzene chromium tricarbonyl from xtal 1987 3D balls.png ImageSizeR1 150px ImageName IUPACName benzene tricarbonylchromium OtherNames benzene tricarbonyl chromium, benzene chromium tricarbonyl, Benchrotrene, pi benzenetricarbonylchromium Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 9130108 InChI 1 C6H6.3CO.Cr c1 2 4 6 5 3 1 3 1 2 h1 6H SMILES Cr . O C . O C . O C .c1ccccc1 InChIKey WVSBQYMJNMJHIM UHFFFAOYAR StdInChI Ref stdinchicite correct chemspider StdInChI 1S C6H6.3CO.Cr c1 2 4 6 5 3 1 3 1 2 h1 6H StdInChIKey Ref stdinchicite correct chemspider StdInChIKey WVSBQYMJNMJHIM UHFFFAOYSA N CASNo Ref cascite correct ?? CASNo 12082 08 5 RTECS Section2 Chembox Properties Formula Cr C sub 6 sub H sub 6 sub CO sub 3 sub MolarMass 214.14 g mol Appearance solid yellow crystals Density Solubility in water nonsoluble SolubleOther THF , ether , benzene MeltingPt 163 166 C BoilingPt Section3 Chembox Structure Coordination tetrahedral, piano stool CrystalStruct Dipole Section7 Chembox Hazards ExternalMSDS EUIndex ... 36 37 LD50 Section8 Chembox Related OtherCations OtherCpds Benzene chromium tricarbonyl is an organometallic ... sup 6 sup benzene dimethylacetal and sup 6 sup benzene diethylacetal chromium tricarbonyl structural ... Crystallography doi 10.1007 BF01677100 year 1996 volume 26 pages 355 issue 5 ref Preparation Benzene ... by the carbonylation of bis benzene chromium . ref Fischer, Ernst Otto fele, Karl. 1957 . ber Aromatenkomplexe ... and benzene is used Cr CO sub 6 sub C sub 6 sub H sub 6 sub Cr C sub 6 sub H sub 6 sub CO sub 3 sub 3 CO Applications Benzene tricarbonylchromium is substantially more electrophilic than benzene, which ... sup Benzene tricarbonylchromium, in Encyclopedia of Reagents for Organic Synthesis, John Wiley & Sons ... C sub 6 sub H sub 5 sub Li CO sub 3 sub TMSCl Cr C sub 6 sub H sub 5 sub TMS CO sub 3 sub LiCl Benzene ... more details
enzyme Name hydroxyamino benzene mutase EC number 5.4.4.1 CAS number IUBMB EC number 5 4 4 1 GO code image width caption In enzymology , a hydroxyamino benzene mutase EC number 5.4.4.1 is an enzyme that catalysis catalyzes the chemical reaction hydroxyamino benzene math rightleftharpoons math 2 aminophenol Hence, this enzyme has one substrate biochemistry substrate , hydroxyamino benzene , and one product chemistry product , 2 Aminophenol 2 aminophenol . This enzyme belongs to the family of isomerase s, specifically those intramolecular transferase s transferring hydroxy groups. The systematic name of this enzyme class is hydroxyamino benzene hydroxymutase . Other names in common use include HAB mutase , hydroxylaminobenzene hydroxymutase , and hydroxylaminobenzene mutase . This enzyme participates in naphthalene and anthracene degradation . References reflist 1 cite journal author He Z, Nadeau LJ, Spain JC date 2000 title Characterization of hydroxylaminobenzene mutase from pNBZ139 cloned from Pseudomonas pseudoalcaligenes JS45. A highly associated SDS stable enzyme catalyzing an intramolecular transfer of hydroxy groups journal Eur. J. Biochem. volume 267 pages 1110&ndash 6 pmid 10672020 doi 10.1046 j.1432 1327.2000.01107.x issue 4 cite journal author Davis JK, Paoli GC, He Z, Nadeau LJ, Somerville CC, Spain JC date 2000 title Sequence analysis and initial characterization of two isozymes of hydroxylaminobenzene mutase from Pseudomonas pseudoalcaligenes JS45 journal Appl. Environ. Microbiol. volume 66 pages 2965&ndash 71 pmid 10877793 doi 10.1128 AEM.66.7.2965 2971.2000 issue 7 pmc 92098 DEFAULTSORT Hydroxyaminobenzene mutase Category EC 5.4.4 Category Enzymes of unknown structure isomerase stub ... more details
Infobox ILO convention code C136 name Benzene Convention, 1971 adopt June 23, 1971 force July 27, 1973 classify Toxic Substances and Agents subject Occupational Safety and Health prev Workers Representatives Convention, 1971 next Dock Work Convention, 1973 shelved Benzene Convention, 1971 is an International Labour Organization International Labour Organization International Labour Conference Convention . It was established in 1971 blockquote Having decided upon the adoption of certain proposals with regard to protection against hazards arising from benzene ,... ref name ILO ILO http www.ilo.org ilolex cgi lex convde.pl?C136 Convention C136 ref blockquote br style clear both Ratifications As of November 2010, the convention had been ratified by 38 countries Montenegro being the last in 2006 . ref name ILO References references External links http www.ilo.org www.ilo.org official ILO site. Category Health law Category International Labour Organization conventions Category Treaties concluded in 1971 Category Treaties entered into force in 1973 International law stub ... more details
chembox verifiedrevid 411125686 Name Bis benzene chromium ImageFileL1 Bis benzene chromium 2D skeletal.png ImageSizeL1 100px ImageNameL1 Bis benzene chromium ImageFileR1 Bis benzene chromium from xtal 2006 3D balls A.png ImageSizeR1 130px ImageNameR1 Bis benzene chromium ImageFile2 Bis benzene chromium 1.jpg ImageSize2 250 px ImageName2 Bis benzene chromium sublimated, under nitrogen IUPACName Bis benzene chromium OtherNames di benzene chromium br dibenzenechromium Section1 Chembox Identifiers CASNo 1271 54 1 RTECS GB5850000 Section2 Chembox Properties Formula C sub 12 sub H sub 12 sub Cr MolarMass 208.22 g mol Appearance brown black crystals Density Solubility insoluble Solvent other solvents SolubleOther slightly benzene , THF MeltingPt 284 285 C BoilingPt sublimes 160 C br in vacuo. Section3 Chembox Structure Coordination pseudo octahedral CrystalStruct Dipole 0 Debye D Section7 Chembox Hazards ExternalMSDS MainHazards flammable FlashPt 180 F RPhrases 11 SPhrases 16 33 Section8 Chembox Related OtherCpds Ferrocene br chromocene Bis benzene chromium is the organometallic compound with the chemical formula formula Cr hapticity sup 6 sup C sub 6 sub H sub 6 sub sub 2 sub . It is sometimes called dibenzenechromium. The compound played an important role in the development of sandwich compounds in organometallic chemistry and is the prototypical coordination complex complex containg ... CrCl sub 3 sub , aluminium, and benzene, in the presence of Aluminium chloride AlCl sub 3 sub . This so ... bromide and CrCl sub 3 sub . ref cite journal author Seyferth, D. title Bis benzene ... until the breakthrough by Fischer and Hafner, ref Cite journal author Seyferth, D. title Bis benzene ... affords Cr C sub 6 sub H sub 6 sub sub 2 sub sup sup . Carbonylation gives Benzene chromium tricarbonyl benzene chromium tricarbonyl . The compound finds limited use in organic synthesis . ref Herndon .... Wiley & Sons, New York. DOI 10.1002 047084289. ref References reflist DEFAULTSORT Bis Benzene Chromium ... more details
for benzene available at http www2.siri.org msds mf amoco files 11697000.html AMOCO . Structure and properties ... etp Cite web url http ddbonline.ddbst.de EE 31 20ETP 20 28Entropy 29.shtml title ETP Entropy of Benzene ... temperature of vapor over liquid. Image LogBenzeneVaporPressure.png thumb 774px left log of Benzene ... D0D0D0 align center colspan 3 Vapor liquid Equilibrium br for Benzene Ethanol ref name cheric b ... 3 Vapor liquid Equilibrium br for Benzene Methanol ref name cheric b br P 760 mm Hg chembox ... D0D0D0 align center colspan 3 Vapor liquid Equilibrium br for Benzene Acetone ref name cheric b br P 101.325 kPa chembox header rowspan 2 BP br Temp. br C colspan 2 by mole benzene chembox header liquid ... color bc C0C090 bgcolor D0D0D0 align center colspan 3 Vapor liquid Equilibrium br for Benzene n ... Benzene h nmr.png 600px File Benzene c13 nmr.png 600px Safety data Material Safety Data Sheet for benzene ... hazards Benzene is a carcinogen cancer causing agent . Very flammable. The pure material, and any solutions containing it, constitute a fire risk. Safe handling Benzene should NOT be used at all unless no safer alternatives are available. If benzene must be used in an experiment, it should be handled ... help. Disposal It is dangerous to try to dispose of benzene by washing it down a sink, since ... of benzene in this way will also break local environmental rules. Instead, retain in a safe ... Benzene Data Page Category Chemical data pages Category Simple aromatic rings ... more details
polymerized to produce linear alkenes. The resulting linear mono olefins react with benzene ... 3 sub are the two major catalysts for the alkylation of benzene with linear mono olefins. The HF ... reaction with benzene using hydrogen fluoride as catalyst. This process accounts for the majority ... mono olefins, both internal and alpha olefins, are reacted with benzene to produce LAB in the presence ... reaction with benzene using a fixed bead catalyst. This is newer technology and has several of the stages depicted in the HF n paraffins process, but it is principally different in the benzene ... benzene over a transalkylation catalyst. The Friedel Crafts reaction Friedel Crafts alkylation process involves chlorination of n paraffins to monochloroparaffins followed by alkylation of benzene ... DEFAULTSORT Linear Alkyl Benzene Category Alkylbenzenes es Alquilbenceno lineal ru ... more details
cc by sa 3.0 The US National Library of Medicine s TOXMAP, http toxmap.nlm.nih.gov Benzene releases, all mediums, reported to EPA TRI Program, 2007 8, shown by NLM s TOXMAP. ... more details
vector version available Benzene Orbitals.svg GFDL en migration relicense Benzene orbitals, cropped and translated from de Bild Benzol.png , original by User Sansculotte zh Image Benzene orbitals2.png Orphan image ... more details
Summary The change from styrene monomer to polystyrene polymer R is a phenyl benzene group Licensing cc by sa 2.5 Category Unclassified Chemical Structures ... more details
A benzenetetrol is a type of chemical compounds formed with a benzene and four hydroxyl groups. It may refer to 1,2,3,4 Benzenetetrol 1,2,3,5 Benzenetetrol 1,2,4,5 Benzenetetrol disambig Category Benzenetetrols ... more details
Image Styrene.png thumb Styrene Image Stilbene.png thumb Stilbene Benzylidene compounds are alkene derivatives of benzene . They are primarily divided into two groups Styrene s one benzene Stilbene s two benzene s Benzylidene is also used to describe a type of protecting group in synthetic organic chemistry of the form PhCH R sub 2 sub For example, 4,6 O benzylidene glucopyranose is a glucose molecule whose 4 and 6 OH groups are protected by being bound to a benzylic carbon, forming a benzyl acetal. See also Dibenzylideneacetone Aurone External links Wiktionary benzylidene MeshName Benzylidene Compounds Category Aromatic compounds aromatic stub fr Benzylid ne ... more details
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