3-Methylbut-1-en

Bezeichnung:3-Methylbut-1-en

CAS-Nr563-45-1

Englisch Name:3-Methyl-1-butene

CBNumberCB5751808

SummenformelC5H10

Molgewicht70.13

MOL-Datei563-45-1.mol

Synonyma

3-Methylbut-1-en

3-Methylbut-1-en physikalisch-chemischer Eigenschaften

Schmelzpunkt	-168 °C
Siedepunkt	20 °C(lit.)
Dichte	0.627 g/mL at 20 °C(lit.)
Dampfdruck	14.97 psi ( 20 °C)
Brechungsindex	n20/D 1.364
Flammpunkt	-57 °C
storage temp.	−20°C
Löslichkeit	Soluble in alcohol, benzene, and ether (Weast, 1986)
pka	>14 (Schwarzenbach et al., 1993)
Farbe	Colorless to Almost colorless
Wasserlöslichkeit	130 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966)
BRN	505980
Henry's Law Constant	(atm?m³/mol): 0.535 at 25 °C (Hine and Mookerjee, 1975)
CAS Datenbank	563-45-1(CAS DataBase Reference)
NIST chemische Informationen	1-Butene, 3-methyl-(563-45-1)
EPA chemische Informationen	3-Methyl-1-butene (563-45-1)

Sicherheit

Kennzeichnung gefährlicher	F+,Xn
R-Sätze:	12-36/37/38-65
S-Sätze:	16-26-62
RIDADR	UN 2561 3/PG 1
WGK Germany	3
F	4.5-31
HazardClass	3.1
PackingGroup	I
HS Code	2901290000
Giftige Stoffe Daten	563-45-1(Hazardous Substances Data)

Gefahreninformationscode (GHS)

3-Methyl-1-butene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R12:Hochentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
Colorless, extremely volatile liquid or gas; disagreeable odor.Soluble in alcohol; insoluble in water.
Physikalische Eigenschaften
Colorless, flammable liquid or gas with a disagreeable odor
Verwenden
Organic synthesis, high-octane fuel manufacture.
Verwenden
3-Methyl-1-butene has been used in asymmetric total synthesis of (?)-Linderol A, a potent inhibitor of melanin biosynthesis of cultured B-16 melanoma cells.
Definition
ChEBI: An alkene that is but-1-ene carrying a methyl substituent at position 3.
Allgemeine Beschreibung
A colorless volatile liquid with a disagreeable odor. Insoluble in water and less dense than water. Vapors heavier than air. Flash point below 0°F. Used to make other chemicals.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
3-Methyl-1-butene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
Hazard
Highly flammable, dangerous fire and explosion risk, explosive limits 1.6–9.1%.
Health Hazard
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Sicherheitsprofil
Very dangerous fire hazard when exposed to heat, flame, or oxidizers. Explosive in the form of vapor when exposed to heat or flame. To fight fire, use alcohol foam, mist, spray, dry chemical, CO2. When heated to decomposition it emits acrid smoke and irritating fumes. See also 2-METHYL-1 BUTENE.
Source
Schauer et al. (1999) reported 3-methyl-1-butene in a diesel-powered medium-duty truck exhaust at an emission rate of 160 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 3-methyl-1-butene was 6.9 mg/kg of pine burned. Emission rates of 3-methyl-1-butene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained 3-methyl-1-butene at a concentration of 380 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.35 and 22.5 mg/km, respectively (Schauer et al., 2002).
Environmental Fate
Photolytic. The following rate constants were reported for the reaction of 3-methyl-1-butene and OH radicals in the atmosphere: 3.0 x 10^-11 cm³/molecule?sec (Atkinson et al., 1979); 6.07 to 9.01 x 10-11 cm³/molecule?sec (Atkinson, 1985); 3.18 x 10^-11 cm³/molecule?sec (Atkinson, 1990).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.

3-Methyl-1-butene Upstream-Materialien And Downstream Produkte

3-Methylbut-1-en Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

563-45-1, 3-Methyl-1-butene Verwandte Suche:

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