ChemicalBook Product Catalog Chemical Reagents Organic reagents Olefin (cyclic and acyclic) 2-BUTENE

2-BUTENE

2-BUTENE Basic information
Product Name:2-BUTENE
Synonyms:(E)-2-Butene;(E)-2-C4H8;(E)-But-2-ene;2-Butene,(E)-;2-trans-Butene;beta-trans-butylene;TRANS-2-BUTENE, 99+%;2-Butene, (2E)-
CAS:624-64-6
MF:C4H8
MW:56.11
EINECS:210-855-3
Product Categories:Gas Cylinders;Hydrocarbons (Low Boiling point);Synthetic Organic Chemistry;Chemical Synthesis;Compressed and Liquefied Gases;Synthetic Reagents
Mol File:624-64-6.mol
2-BUTENE Structure
2-BUTENE Chemical Properties
Melting point −140 °C(lit.)
Boiling point 1 °C(lit.)
density 0.5990
vapor density 2 (vs air)
vapor pressure 2575 mm Hg ( 37.7 °C)
refractive index 1.3932
Fp <−30 °F
explosive limit9.7%
Merck 1520
BRN 1718756
Stability:Stable. Incompatible with strong oxidizing agents, peroxides, peroxyacids, aluminium tetrahydroborate. Extremely flammable.
InChIKeyIAQRGUVFOMOMEM-ONEGZZNKSA-N
CAS DataBase Reference624-64-6(CAS DataBase Reference)
EPA Substance Registry Systemtrans-2-Butene (624-64-6)
Safety Information
Hazard Codes F,F+
Risk Statements 12-11
Safety Statements 9-16-33-38
RIDADR UN 1012 2.1
WGK Germany 3
RTECS EM2932000
Autoignition Temperature615 °F
DOT Classification2.1 (Flammable gas)
HazardClass 2.1
HS Code 2901230000
Hazardous Substances Data624-64-6(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
2-BUTENE Usage And Synthesis
Chemical Propertiescolourless gas
Chemical Properties2-Butene, C4H8, can occur in trans or cis conformation; the former is the more stable form. It is a colorless, extremely flammable gas. 2-Butene occurs in coal gas and has been detected in diesel exhaust. The more highly reactive trans-2-butene occurs at much lower concentrations in the atmosphere than other comparable hydrocarbons.
Usestrans-2-Butene can be used as a monomer unit to produce high molecular weight polyolefins with well-defined microstructures by nickle-catalyzed polymerization reaction. It is also used as a reactant in the isomerization reaction to produce the corresponding isomer using acid-activated catalysts.
Production Methods2-Butene has been recovered from refining gases or produced by petroleum cracking. It is a component in the production of gasolines, butadiene, and a variety of other chemicals.
DefinitionChEBI: But-2-ene is a butene.
General DescriptionA colorless liquefied petroleum gas. An asphyxiant. Flammability limits of 1.8-9% by volume.
Air & Water ReactionsHighly flammable. Insoluble in water.
Reactivity ProfileThe unsaturated aliphatic hydrocarbons, such as 2-BUTENE, 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. Aluminum borohydride reacts with alkenes and in the presence of oxygen, combustion is initiated even in the absence of moisture.
Purification MethodsThe gas is dried with CaH2 and purified by gas chromatography. [Beilstein 1 H 205, 1 II 176, 1 III 730, 1 IV 781.] HIGHLY FLAMMABLE.
TRANS-3-DIHYDROMUCONIC ACID = TRANS-2-BUTENE-1,4-DICARBOXYLIC ACID 1,1,1,2,4,4,4-HEPTAFLUORO-2-BUTENE 2-CHLORO-2-BUTENE,2-CHLORO-2-BUTENE(CIS-TRANS) 2-CHLORO-4-(3,4-DIFLUOROPHENYL)-1-BUTENE FUMARALDEHYDE BIS(DIMETHYLACETAL) = TETRAMETHOXY-TRANS-2-BUTENE 2-Methyl-1-butene-3-one 2-CHLORO-4-(3-METHOXYPHENYL)-1-BUTENE 2-CHLORO-4-(2,5-DIFLUOROPHENYL)-1-BUTENE Mesaconic acid 2-CHLORO-4-(3-CYANOPHENYL)-1-BUTENE TRANS-2-BUTENE-1,4-DIOL 2-CHLORO-4-(2-CHLORO-4-FLUOROPHENYL)-1-BUTENE 2-BUTENE-D8 2-CHLORO-4-(3-FLUOROPHENYL)-1-BUTENE 2-CHLORO-4-(4-METHYLPHENYL)-1-BUTENE 1,3-Benzenedicarboxylic acid, polymer with (E)-2-butenedioic acid and 1,2-propanediol 2-CHLORO-4-(2,4-DIFLUOROPHENYL)-1-BUTENE 2-CHLORO-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
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