Propylencarbonat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H319：Verursacht schwere Augenreizung.

• Sicherheit

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

  P337+P313：Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

Propylene carbonate Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R36:Reizt die Augen.

• S-Sätze Betriebsanweisung:

  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

• Chemische Eigenschaften

  Propylene carbonate is a clear, colorless, mobile liquid, with a faint odor.

• Verwenden

  propylene carbonate is used in chemical reactions as a solvent, plasticizer, solubilizer, or dilutent. It is also used in the synthesis of solar cells as well as lithium ion batteries.

• Vorbereitung Methode

  Propylene carbonate may be prepared by the reaction of sodium bicarbonate with propylene chlorohydrin.

• Allgemeine Beschreibung

  Propylene carbonate is a cyclic carbonate that is commonly used as a solvent and as a reactive intermediate in organic synthesis. It is being considered as a potential electrochemical solvent due to its low vapor pressure, high dielectric constant and high chemical stability.
  Propylene carbonate can be synthesized from propylene oxide and CO2. Optically active form of propylene carbonate can be prepared from the reaction between CO2 and racemic epoxides. Decomposition of propylene carbonate on the graphite electrode in lithium batteries results in the formation of a lithium intercalated compound.

• Flammability and Explosibility

  Not classified

• Pharmazeutische Anwendungen

  Propylene carbonate is used mainly as a solvent in oral and topical pharmaceutical formulations.
  In topical applications, propylene carbonate has been used in combination with propylene glycol as a solvent for corticosteroids. The corticosteroid is dissolved in the solvent mixture to yield microdroplets that can then be dispersed in petrolatum.Propylene carbonate has been used as a dispensing solvent in topical preparations.
  Propylene carbonate has also been used in hard gelatin capsules as a nonvolatile, stabilizing, liquid carrier. For formulations with a low dosage of active drug, a uniform drug content may be obtained by dissolving the drug in propylene carbonate and then spraying this solution on to a solid carrier such as compressible sugar; the sugar may then be filled into hard gelatin capsules
  Propylene carbonate may additionally be used as a solvent, at room and elevated temperatures, for many cellulose-based polymers and plasticizers. Propylene carbonate is also used in cosmetics.

• Sicherheit(Safety)

  Propylene Carbonate is listed in The Design for the Environment (DfE) Safer Chemistry Program by the EPA as a Solvent category and indicated by the Green circle, meaning the chemical has been verified to be of low concern for human and environmental health based on experimental and modeled data.
  In animal studies, propylene carbonate was found to cause tissue necrosis after parenteral administration.
  (mouse, oral): 20.7 g/kg
  (mouse, SC): 15.8 g/kg
  (rat, oral): 29 g/kg
  (rat, SC): 11.1 g/kg

• Lager

  Propylene carbonate and its aqueous solutions are stable but may degrade in the presence of acids or bases, or upon heating;
  Store in a well-closed container in a cool, dry place.

• läuterung methode

  It is manufactured by reaction of 1,2-propylene oxide with CO2 in the presence of a catalyst (quaternary ammonium halide). Contaminants include propylene oxide, carbon dioxide, 1,2-and 1,3-propanediols, allyl alcohol and ethylene carbonate. It can be purified by percolation through molecular sieves (Linde 5A, dried at 350o for 14hours under a stream of argon), followed by distillation under a vacuum. [Jasinski & Kirkland Anal Chem 39 163 1967.] It can be stored over molecular sieves under an inert gas atmosphere. When purified in this way it contains less than 2ppm of water. Activated alumina and dried CaO have also been used as drying agents prior to fractional distillation under reduced pressure. It has been dried with 3A molecular sieves and distilled under nitrogen in the presence of p-toluenesulfonic acid, then redistilled and the middle fraction collected. [Beilstein 19 III/IV 1564, 19/4 V 21.]

• Inkompatibilitäten

  Propylene carbonate hydrolyzes rapidly in the presence of strong acids and bases, forming mainly propylene oxide and carbon dioxide. Propylene carbonate can also react with primary and secondary amines to yield carbamates.

• Regulatory Status

  Included in the FDA Inactive Ingredients Database (topical ointments). Included in the Canadian List of Acceptable Nonmedicinal Ingredients.

Propylene carbonate Upstream-Materialien And Downstream Produkte

Propylencarbonat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(699)Suppliers

108-32-7, Propylene carbonate Verwandte Suche: