Dibenzofuran Produkt Beschreibung

Dibenzofuran Struktur
132-64-9
  • CAS-Nr.132-64-9
  • Bezeichnung:Dibenzofuran
  • Englisch Name:Dibenzofuran
  • Synonyma:Dibenzofuran
    DBF;DIBENZOFURAN;DIBENZOFURON;Dibenzofurane;Dibenzofuran 1;Biphenylenoxid;Dibenzofuran 98%;DIPHENYLENE OXIDE;DIBENZO[B,D]FURAN;BIPHENYLENE OXIDE
  • CBNumber:CB0338385
  • Summenformel:C12H8O
  • Molgewicht:168.19
  • MOL-Datei:132-64-9.mol
Dibenzofuran physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :80-82 °C(lit.)
  • Siedepunkt: :154-155 °C20 mm Hg(lit.)
  • Dichte :1,3 g/cm3
  • Dampfdruck :2.48 x 10-3 mmHg at 25 °C (Chirico et al., 1990)
  • Brechungsindex :1.6480
  • Flammpunkt: :130 °C
  • storage temp.  :2-8°C
  • Löslichkeit :Insoluble in wate(<1 mg/mL). Soluble in nonpolar organic solvents.
  • Aggregatzustand :neat
  • Wasserlöslichkeit :<0.1 g/100 mL at 20 ºC
  • BRN  :121100
  • Henry's Law Constant :5.82 x 10-5 atm?m3/mol at 25 °C (approximate - calculated from water solubility and vapor pressure)
  • InChIKey :TXCDCPKCNAJMEE-UHFFFAOYSA-N
  • CAS Datenbank :132-64-9(CAS DataBase Reference)
  • NIST chemische Informationen :Dibenzofuran(132-64-9)
  • EPA chemische Informationen :Dibenzofuran(132-64-9)
Sicherheit

Dibenzofuran Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
    R22:Gesundheitsschädlich beim Verschlucken.
    R39/23/24/25:Giftig: ernste Gefahr irreversiblen Schadens durch Einatmen, Berührung mit der Haut und durch Verschlucken.
    R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
    R11:Leichtentzündlich.
    R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
    R63:Kann das Kind im Mutterleib möglicherweise schädigen.
    R43:Sensibilisierung durch Hautkontakt möglich.
    R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
    R45:Kann Krebs erzeugen.
  • S-Sätze Betriebsanweisung: S22:Staub nicht einatmen.
    S24/25:Berührung mit den Augen und der Haut vermeiden.
    S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
    S29:Nicht in die Kanalisation gelangen lassen.
    S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
    S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
    S16:Von Zündquellen fernhalten - Nicht rauchen.
    S7:Behälter dicht geschlossen halten.
    S7/9:Behälter dicht geschlossen an einem gut gelüfteten Ort aufbewahren.
    S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
    S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
  • Chemische Eigenschaften white to light yellow crystal powde
  • Chemische Eigenschaften Dibenzofuran is a white crystalline powder.
  • Physikalische Eigenschaften Colorless crystals having a creosote-like odor. The least detectable odor threshold concentration in water at 60 °C was 2 μg/L (Alexander et al., 1982).
  • Verwenden Research chemical. Derived from industrial and experimental coal gasification operations where the maximum concentration detected in coal gas tar streams was 12 mg/m3 (Cleland, 1981).
  • Definition ChEBI: A mancude organic heterotricyclic parent that consists of a furan ring flanked by two benzene rings ortho-fused across the 2,3- and 4,5-positions.
  • Allgemeine Beschreibung Colorless white crystalline solid.
  • Air & Water Reaktionen Insoluble in water.
  • Reaktivität anzeigen Dibenzofuran is sensitive to prolonged exposure to light .
  • Brandgefahr Flash point data for Dibenzofuran are not available. Dibenzofuran is probably combustible.
  • mögliche Exposition This material is used as an insecticide and in organic synthesis to make other chemicals. It is derived from coal tar creosote.
  • Source Based on laboratory analysis of 7 coal tar samples, dibenzofuran concentrations ranged from 170 to 4,000 ppm (EPRI, 1990).
    Schauer et al. (1999) reported dibenzofuran in diesel fuel at a concentration of 29 μg/g and in a diesel-powered medium-duty truck exhaust at an emission rate of 28.7 μg/km.
    Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 5.5 and 42.2 μg/km, respectively (Schauer et al., 2002).
  • Environmental Fate Biological. Dibenzofuran was oxidized by salicylate-induced cells of Pseudomonas sp. strain 9816/11 and isopropyl-β-D-thiogalactopyranoside-induced cells of Escherichia coli JM109(DE3) (pDTG141) to (1R,2S)-cis-1,2-dihydroxy-1,2-dihydrodibenzofuran (60–70% yield) and (3S,4R)- cis-3,4-dihydroxy-3,4-dihydrodibenzofuran (30–40% yield) (Resnick and Gibson, 1996).
    Soil. The estimated half-lives of dibenzofuran in soil under aerobic and anaerobic conditions were 7 to 28 and 28 to 112 d, respectively (Lee et al., 1984).
    Groundwater. Based on aerobic acclimated and unacclimated groundwater die away test data, the estimated half-life of dibenzofuran in groundwater ranged from 8.54 to 34.9 d (Lee et al., 1984).
    Photolytic. The estimated half-life for the reaction of dibenzofuran with OH radicals in the atmosphere ranged from 1.9 to 19 h (Atkinson, 1987).
    Chemical/Physical. It was suggested that the chlorination of dibenzofuran in tap water accounted for the presence of chlorodibenzofuran (Shiraishi et al., 1985).
    Dibenzofuran will not hydrolyze because it has no hydrolyzable functional group (Kollig, 1995).
  • Versand/Shipping UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
  • läuterung methode Dissolve dibenzofuran in diethyl ether, then shake it with two portions of aqueous NaOH (2M), wash it with water, separate and dry (MgSO4) it. After evaporating the ether, dibenzofuran is crystallised from aqueous 80% EtOH and then dried under vacuum. [Cass et al. J Chem Soc 1406 1958.] High purity material is obtained by zone refining. [Beilstein 17 V 234.]
  • Inkompatibilitäten This material is used as an insecticide and in organic synthesis to make other chemicals. It is derived from coal tar creosote.
  • Waste disposal In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed prop- erly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
Dibenzofuran Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Dibenzofuran Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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132-64-9, Dibenzofuran Verwandte Suche:
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  • 2,2’-biphenylyleneoxide
  • 2,2'-Biphenylene oxide
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  • Dibenzofurane
  • dibenzol(b,d)furan
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  • DIPHENYLENE OXIDE
  • DIBENZOFURAN
  • DIBENZO[B,D]FURAN
  • BIPHENYLENE OXIDE
  • (1,1’-biphenyl)-2,2’-diyloxide
  • [1,1'-Biphenyl]-2,2'-diyl oxide
  • DIBENZOFURAN=BIPHENYLENOXID
  • DIBENZOFURON
  • DBF
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  • Dibenzofuran 2g [132-64-9]
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