Propylbenzol

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H226：Flüssigkeit und Dampf entzündbar.

  H304：Kann bei Verschlucken und Eindringen in die Atemwege tödlich sein.

  H335：Kann die Atemwege reizen.

  H411：Giftig für Wasserorganismen, mit langfristiger Wirkung.

• Sicherheit

  P210：Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.

  P273：Freisetzung in die Umwelt vermeiden.

N-PROPYLBENZENE Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R10:Entzündlich.
  R37:Reizt die Atmungsorgane.
  R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
  R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.

• S-Sätze Betriebsanweisung:

  S24:Berührung mit der Haut vermeiden.
  S37:Geeignete Schutzhandschuhe tragen.
  S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
  S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.

• Chemische Eigenschaften

  colourless or light yellow liquid

• Physikalische Eigenschaften

  Clear, colorless, mobile liquid with an odor similar to ethylbenzene or toluene. An odor threshold concentration of 3.8 ppb_v was determined by a triangular odor bag method (Nagata and Takeuchi, 1990). Cometto-Mu?iz and Cain (1994) reported an average nasal pungency threshold concentration of 1,487 ppm_v.

• Verwenden

  n-Propylbenzene is used to prepare benzoic acid. It is employed as a solvent for gas chromatography. It is also used as a solvent and an intermediate in organic synthesis. Further, it is used in fuels and fuel additives.

• Verwenden

  In textile dyeing and printing; as solvent for cellulose acetate.

• Definition

  ChEBI: An alkylbenzene that is benzene having one of its aromatic hydrogens substituted by a propyl group.

• Synthesis Reference(s)

  Journal of the American Chemical Society, 75, p. 3323, 1953 DOI: 10.1021/ja01110a009
  The Journal of Organic Chemistry, 60, p. 2430, 1995 DOI: 10.1021/jo00113a024
  Tetrahedron Letters, 28, p. 3817, 1987 DOI: 10.1016/S0040-4039(00)96393-7

• Allgemeine Beschreibung

  A clear colorless liquid. Insoluble in water and less dense than water. Flash point 86°F. Mildly toxic by ingestion and inhalation. Used to make other chemicals.

• Air & Water Reaktionen

  Highly flammable. Insoluble in water.

• Reaktivität anzeigen

  Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as PROPYL BENZENE, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.

• Hazard

  Flammable, moderate fire risk.

• Health Hazard

  May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation.

• Brandgefahr

  Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback.

• Source

  Thomas and Delfino (1991) equilibrated contaminant-free groundwater collected from Gainesville, FL with individual fractions of three individual petroleum products at 24–25 °C for 24 h. The aqueous phase was analyzed for organic compounds via U.S. EPA approved test method 602. Average propylbenzene concentrations reported in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were 246, 82, and 23 μg/L, respectively. When the authors analyzed the aqueous-phase via U.S. EPA approved test method 610, average propylbenzene concentrations in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were generally lower, i.e., 210, 57, and 25 μg/L, respectively.
  Schauer et al. (1999) reported propylbenzene in a diesel-powered medium-duty truck exhaust at an emission rate of 100 μg/km.
  California Phase II reformulated gasoline contained propylbenzene at a concentration of 3.5 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.83 and 97.9 mg/km, respectively (Schauer et al., 2002).
  Identified as one of 140 volatile constituents in used soybean oils collected from a processing plant that fried various beef, chicken, and veal products (Takeoka et al., 1996).
  Drinking water standard: No MCLGs or MCLs have been proposed (U.S. EPA, 1996).

• Environmental Fate

  Biological. A Nocardia sp., growing on n-octadecane, biodegraded propylbenzene to phenylacetic acid (Davis and Raymond, 1981). Propylbenzene was cometabolized by a strain of Micrococcus cerificans to cinnamic acid (Pitter and Chudoba, 1990).
  Estimated half-lives of propylbenzene (0.8 μg/L) from an experimental marine mesocosm during the spring (8–16 °C), summer (20–22 °C), and winter (3–7 °C) were 19, 1.3, and 11 d, respectively (Wakeham et al., 1983).
  Photolytic. A rate constant of 3.7 x 10^-9 L/molecule?sec was reported for the reaction of propylbenzene with OH radicals in the gas phase (Darnall et al., 1976). Similarly, a room temperature rate constant of 5.7 x 10^-12 cm³/molecule?sec was reported for the vapor-phase reaction of propylbenzene with OH radicals (Atkinson, 1985). At 25 °C, a rate constant of 6.58 x 10-12 cm³/molecule?sec was reported for the same reaction (Ohta and Ohyama, 1985).
  Chemical/Physical. Propylbenzene will not hydrolyze because it does not contain a hydrolyzable functional group (Kollig, 1993).

N-PROPYLBENZENE Upstream-Materialien And Downstream Produkte

Propylbenzol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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