Cycloocten
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- CAS-Nr.
- 931-88-4
- Bezeichnung:
- Cycloocten
- Englisch Name:
- cis-Cyclooctene
- Synonyma:
- CYCLOOCTENE;CYCLOOCTENE 95%;Cyclooctene,99%;CIS-CYCLOOCTENE;Cyclooctene >CYCLOOCTENE, STANDARD FOR GC;cis-Cyclooctene ISO 9001：2015 REACH
- CBNumber:
- CB4193267
- Summenformel:
- C8H14
- Molgewicht:
- 110.2
- MOL-Datei:
- 931-88-4.mol
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Cycloocten Eigenschaften
- Schmelzpunkt:
- −16 °C(lit.)
- Siedepunkt:
- 32-34 °C12 mm Hg(lit.)
- Dichte
- 0.848 g/mL at 20 °C(lit.)
- Brechungsindex
- n20/D 1.470
- Flammpunkt:
- 77 °F
- Wasserlöslichkeit
- Insoluble in water
- Farbe
- Colorless to Almost colorless
- BRN
- 1901031
- LogP
- 3.930
- CAS Datenbank
- 931-88-4(CAS DataBase Reference)
- NIST chemische Informationen
- Cyclooctene(931-88-4)
- EPA chemische Informationen
- Cyclooctene (931-88-4)
Cycloocten Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R10:Entzündlich.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
S29:Nicht in die Kanalisation gelangen lassen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
läuterung methode
The cis-isomer is freed from the trans-isomer by fractional distillation through a spinning-band column, followed by preparative gas chromatography on a Dowex 710-Chromosorb W GLC column. It is passed through a short alumina column immediately before use [Collman et al. J Am Chem Soc 108 2588 1986]. It has also been distilled in a dry N2 glove box from powdered fused NaOH through a Vigreux column (p 11), then passed through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 4328 1987]. Alternatively it can be purified via the AgNO3 salt. This salt is obtained from crude cyclooctene (40 mL) by shaking at 70-80o with 50% w/w AgNO3 (2 x 15 mL) to remove cyclooctadienes (aqueous layer). Extraction is repeated at 40o (4 x 20 mL, of 50% AgNO3). Three layers are formed each time. The middle layer contains the AgNO3 adduct of cyclooctene which crystallises on cooling the layer to room temperature. The adduct (complex 2:1) is highly soluble in MeOH (at least 1g/mL) from which it crystallises in large flat needles when cooled at 0o. It is dried under slight vacuum for 1 week in the presence of CaCl2 and paraffin wax soaked in cyclooctene. It has m 51o and loses hydrocarbon on exposure to air. cis-Cyclooctene can be recovered by steam distillation of the salt, collected, dried (CaCl2) and distilled in vacuum. [Braude et al. J Chem Soc 4711 1957, AgNO3: Jones J Chem Soc 1808 1954, Cope & Estes J Am Chem Soc 72 1128 1950, Beilstein 5 I 35, 5 IV 263.] FLAMMABLE LIQUID.
Cycloocten Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Cycloocten Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 99)Lieferanten
931-88-4(Cycloocten)Verwandte Suche:
- CIS-CYCLOOCTENE
- Cyclooctene,99%
- CYCLOOCTENE 95%
- CYCLOOCTENE, STANDARD FOR GC
- Cyclooctene >
- cis-Cyclooctene ISO 9001：2015 REACH
- CYCLOOCTENE
- 931-88-4
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