trans-Pent-2-en

Bezeichnung:trans-Pent-2-en

CAS-Nr646-04-8

Englisch Name:trans-2-Pentene

CBNumberCB4750723

SummenformelC5H10

Molgewicht70.13

MOL-Datei646-04-8.mol

Synonyma

trans-Pent-2-en

trans-Pent-2-en physikalisch-chemischer Eigenschaften

Schmelzpunkt	-140 °C (lit.)
Siedepunkt	37 °C (lit.)
Dichte	0.649 g/mL at 25 °C (lit.)
Dampfdruck	8.06 psi ( 20 °C)
Brechungsindex	n20/D 1.381
Flammpunkt	−50 °F
storage temp.	2-8°C
Löslichkeit	Soluble in alcohol, benzene, and ether (Weast, 1986)
pka	>14 (Schwarzenbach et al., 1993)
Aggregatzustand	clear liquid
Farbe	cis Form: Liquid
Wasserlöslichkeit	203 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966)
Merck	14,7123
BRN	1718795
Henry's Law Constant	0.234 at 25 °C (Hine and Mookerjee, 1975)
LogP	2.580 (est)
CAS Datenbank	646-04-8(CAS DataBase Reference)
EPA chemische Informationen	trans-2-Pentene (646-04-8)

Sicherheit

Kennzeichnung gefährlicher	F,Xn
R-Sätze:	11-36/37/38-65
S-Sätze:	9-16-26-29-33-36-62
RIDADR	UN 3295 3/PG 2
WGK Germany	3
RTECS-Nr.	SB2184500
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29012900
Giftige Stoffe Daten	646-04-8(Hazardous Substances Data)

Gefahreninformationscode (GHS)

trans-2-Pentene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S29:Nicht in die Kanalisation gelangen lassen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
clear colourless to slightly yellowish liquid with a disagreeable odor.
Verwenden
trans-2-Pentene has been used for the calculation of OH levels by the decay method.
Allgemeine Beschreibung
trans-2-Pentene is a colorless liquid with a hydrocarbon smell. It is primarily found in technical grade as a mixture of isomers. It is commonly used as a solvent, in organic synthesis, and as a polymerization inhibitor.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
The unsaturated aliphatic hydrocarbons, such as 2-PENTENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions.
Sicherheitsprofil
A dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes.
Source
Schauer et al. (1999) reported trans-2-pentene in a diesel-powered medium-duty truck exhaust at an emission rate of 50 μg/km.
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of trans-2-pentene was 16.0 mg/kg of pine burned. Emission rates of trans-2-pentene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained trans-2-pentene at a concentration of 4.12 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.71 and 77.4 mg/km, respectively (Schauer et al., 2002).
Environmental Fate
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.
läuterung methode
It is treated as above and washed with water, dried over anhydrous Na2CO3, and fractionally distilled. The middle cut is purified by two passes of fractional melting. [Beilstein 1 IV 814.]

trans-2-Pentene Upstream-Materialien And Downstream Produkte

trans-Pent-2-en Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

646-04-8, trans-2-Pentene Verwandte Suche:

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