2-Methyl-1-pentene

2-Methyl-1-pentene Basic information
Product Name:2-Methyl-1-pentene
Synonyms:2-methyl-1-penten;2-methyl-pent-1-ene;2-Methylpentene;2-Methyl-pentene-1;4-Methyl-4-pentene;C2H5CH2C(CH3)=CH2;2-PROPYLPROPENE;1-METHYL-1-PROPYLETHYLENE
CAS:763-29-1
MF:C6H12
MW:84.16
EINECS:212-108-7
Product Categories:Alpha Sort;M;MAlphabetic;META - METHGasoline, Diesel,&Petroleum;Olefins;Substance classes;Acyclic;Alkenes;Organic Building Blocks;Volatiles/ Semivolatiles
Mol File:763-29-1.mol
2-Methyl-1-pentene Structure
2-Methyl-1-pentene Chemical Properties
Melting point -136 °C
Boiling point 62 °C(lit.)
density 0.682 g/mL at 25 °C(lit.)
vapor pressure 325 mm Hg ( 37.7 °C)
refractive index n20/D 1.392(lit.)
Fp −15 °F
storage temp. 0-6°C
solubility Soluble in alcohol, benzene, chloroform, petroleum (Weast, 1986); miscible in pentane, cyclohexene, and other hydrocarbons.
form Liquid
color Clear colorless
Water Solubility Insoluble in water.
BRN 1340499
Henry's Law Constant0.28 atm?m3/mol at 25 °C (Mackay and Shiu, 1981)
CAS DataBase Reference763-29-1(CAS DataBase Reference)
EPA Substance Registry System2-Methyl-1-pentene (763-29-1)
Safety Information
Hazard Codes F
Risk Statements 11
Safety Statements 9-16-29-33
RIDADR UN 2288 3/PG 2
WGK Germany 3
RTECS SB2230000
10-23
Autoignition Temperature572 °F
TSCA Yes
HazardClass 3.1
PackingGroup II
HS Code 29012900
ToxicityLC50 (inhalation) for mice 127 g/m3/2-h, rats 115 g/3/4-h (quoted, RTECS, 1985).
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
2-Methyl-1-pentene Usage And Synthesis
Chemical PropertiesCLEAR COLOURLESS LIQUID
Physical propertiesClear, colorless flammable liquid with an unpleasant hydrocarbon odor.
Uses2-Methyl-1-pentene is prepared from 2-Methyl-1-pentene. 2-methyl-1-pentene is used in copolymerization of ethylene catalyzed by nonbridged half-titanocenes. The isomerization of 2-methyl-1-pentene leads to anionic activation of c-h bonds in olefins.
UsesOrganic synthesis, flavors, perfumes,medicines, dyes, oils, resins.
DefinitionChEBI: 2-methyl-1-pentene is an alkene that is pent-1-ene carrying a methyl group at position 2. It has a role as a human metabolite. It is an alkene and a volatile organic compound. It derives from a hydride of a pentane.
General DescriptionColorless liquid. Flash point -15°F. Floats on water. Irritating vapor.
Air & Water ReactionsHighly flammable. Insoluble in water.
Reactivity Profile2-Methyl-1-pentene 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.
HazardFlammable, dangerous fire risk.
Health HazardINHALATION: May produce anesthetic effects. EYES: Moderate eye irritation possible.
Fire HazardBehavior in Fire: Can react vigorously with oxidizing materials.
SourceCalifornia Phase II reformulated gasoline contained 2-methyl-1-pentene at a concentration of 1.25 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.23 and 26.6 mg/km, respectively (Schauer et al., 2002).
Environmental fatePhotolytic. The reported reaction rate constants for the reaction of 2-methyl-1-pentene with OH radicals and ozone in the atmosphere are 1.05 x 10-17 and 6.26 x 10-11 cm3/molecule?sec, respectively (Atkinson and Carter, 1984; Atkinson, 1985).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.
Purification MethodsWater is removed, and formation of peroxides is prevented by several vacuum distillations of 2-methyl-1-pentene from sodium. It is stored with sodium-potassium alloy. [Beilstein 1 IV 841.]
Jasmone 1,4,5,8,9,10-Hexahydroanthracene GERANYL CHLORIDE GERANYL BROMIDE 1-Cyclopentenecarboxylic acid (-)-MYRTENOL (1R)-(+)-ALPHA-PINENE ALPHA-PINENE Colchicine 2-CARENE cis-VERBENOL 1-CYCLOPENTENYLACETONITRILE 3-CARENE (-)-VERBENONE 1-Methylcyclopentene 1,2,3,4-TETRAPHENYL-1,3-CYCLOPENTADIENE 1,2,3,4,5-Pentamethylcyclopentadiene 3-Methyl-2-cyclopenten-1-one

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