Pent-1-en

Bezeichnung:Pent-1-en

CAS-Nr109-67-1

Englisch Name:1-Pentene

CBNumberCB8852784

SummenformelC5H10

Molgewicht70.13

MOL-Datei109-67-1.mol

Synonyma

Pent-1-en

Pent-1-en physikalisch-chemischer Eigenschaften

Schmelzpunkt	-165 °C
Siedepunkt	29.9-30.1 °C (lit.)
Dichte	0.641 g/mL at 25 °C (lit.)
Dampfdichte	2.4 (vs air)
Dampfdruck	10.27 psi ( 20 °C)
Brechungsindex	n20/D 1.371(lit.)
Flammpunkt	−20 °F
storage temp.	2-8°C
Löslichkeit	alcohol: miscible(lit.)
Aggregatzustand	Liquid
pka	>14 (Schwarzenbach et al., 1993)
Farbe	Clear colorless
Wichte	0.64
Geruch (Odor)	Like gasoline.
Odor Threshold	0.1ppm
Explosionsgrenze	8.7%
Wasserlöslichkeit	0.15 g/L (20 ºC)
Merck	14,7122
BRN	1731629
Henry's Law Constant	0.406 at 25 °C (Hine and Mookerjee, 1975)
Dielectric constant	2.1（20℃）
Stabilität	Stable. Incompatible with strong oxidizing agents. Highly flammable - readily forms explosive mixtures with air.
LogP	2.4-2.66 at 25℃
CAS Datenbank	109-67-1(CAS DataBase Reference)
NIST chemische Informationen	1-Pentene(109-67-1)
EPA chemische Informationen	1-Pentene (109-67-1)

Sicherheit

Kennzeichnung gefährlicher	F+,Xn,F,Xi
R-Sätze:	12-52/53-65
S-Sätze:	61-62-16
RIDADR	UN 1108 3/PG 1
WGK Germany	3
RTECS-Nr.	SB2179000
Selbstentzündungstemperatur	522 °F
Hazard Note	Irritant/Extremely Flammable/Keep Cold
TSCA	Yes
HazardClass	3
PackingGroup	I
HS Code	29321900
Giftige Stoffe Daten	109-67-1(Hazardous Substances Data)

Gefahreninformationscode (GHS)

1-Pentene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R12:Hochentzündlich.
R52/53:Schädlich für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
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.
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
1-Pentene, C5H10, is a flammable liquid with specific gravity 0.641. It occurs in coal tar and in petroleum cracking mixtures, and polymerizes on extended periods of storage (15, 320).
Physikalische Eigenschaften
Clear, colorless, volatile, very flammable liquid with a disagreeable odor. An odor threshold concentration of 10 ppb_v was determined by a triangular odor bag method (Nagata and Takeuchi, 1990).
Verwenden
Blending agent for high octane motor fuel; organic synthesis.
Verwenden
1-Pentene is used in the preparation of d-xylitol, l-arabinitol and hydrazones of substituted salicylaldehydes. It is also used as a blending agent for of high-octane gasoline. It reacts with p-toluenesulfinate to yield 1-(2-iodo-pentane-1-sulfonyl)-4-methyl-benzene. It is also involved in Gas Chromatography and Liquid Chromatography analysis.
Vorbereitung Methode
1-Pentene is prepared from allyl bromide and ethyl magnesium bromide in ether or in dipropyl ether.
Allgemeine Beschreibung
Colorless liquid with an odor of gasoline. Flash point -20°F(Aldrich). Insoluble in water and less dense than water. Hence floats on water. Flammable vapor is produced. Boiling point 86°F.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
1-Pentene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. May undergo exothermic polymerization reactions in the presence of various catalysts (such as acids) or initiators.
Health Hazard
Acts as a simple asphyxiant or weak anesthetic in high vapor concentrations. Similar to effects caused by gasoline vapors.
Brandgefahr
Behavior in Fire: Containers may explode in fire.
Chemische Reaktivität
Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
mögliche Exposition
Workers in petroleum refineries and petrochemical plants.
Source
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 1-pentene was 8.6 mg/kg of pine burned. Emission rates of 1-pentene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained 1-pentene at a concentration of 1.48 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.40 and 51.8 mg/km, respectively (Schauer et al., 2002).
Environmental Fate
Biological. Biooxidation of 1-pentene may occur yielding 4-penten-1-ol, which may oxidize to give 4-pentenoic acid (Dugan, 1972). Washed cell suspensions of bacteria belonging to the genera Mycobacterium, Nocardia, Xanthobacter, and Pseudomonas and growing on selected alkenes metabolized 1-pentene to 1,2-epoxypentane. Mycobacterium sp., growing on ethene, hydrolyzed 1,2-epoxypropane to 1,2-propanediol (Van Ginkel et al., 1987).
Photolytic. The following rate constants were reported for the reaction of 1-pentene and OH radicals in the atmosphere: 1.8 x 10^-13 cm³/molecule?sec at 300 K (Hendry and Kenley, 1979); 3.14 x 10^-11 cm³/molecule?sec (Atkinson, 1990). Atkinson (1990) also reported a photooxidation rate constant of 1.10 x 10^-17 cm³/molecule?sec for the reaction of 1-pentene and ozone.
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.
Versand/Shipping
UN1108 1-Pentene, Hazard Class: 3; Labels: 3-Flammable liquid
Inkompatibilitäten
Vapors may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Excessive heat may cause polymerization. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, heat. Incompatible with strong reducing agents such as hydrides; oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
Waste disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

1-Pentene Upstream-Materialien And Downstream Produkte

Pent-1-en Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

109-67-1, 1-Pentene Verwandte Suche:

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