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Isobutene

CAS No.: 115-11-7
Synonyms:
Formula: C4H8
Exact Mass: 56.06260
Molecular Weight: 56.10630
PSA: 0.00000
LogP: 1.58240
Description Feedback
Isobutylene (or 2-methylpropene) is a hydrocarbon of industrial significance. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene. At standard temperature and pressure it is a colorless flammable gas.

Properties Feedback
Appearance & Physical State:COLOURLESS COMPRESSED LIQUEFIED GAS , WITH CHARACTERISTIC ODOUR.
Density:0.627 g/cm3
Melting Point:-140ºC
Freezing Point:-140.34℃
Boiling Point:-6.9ºC(lit.)
Flash Point:-80ºC
Refractive Index:1.3811
Stability:Stable. Highly flammable - readily forms an explosive mixture with air. Incompatible with strong oxidizing agents.
Vapor Pressure:3278 mm Hg ( 37.7 °C)
Vapor Density:2 (vs air)

Safety Info Feedback
RTECS:UD0890000
Hazard Class:2.1
Safety Statements:S9-S16-S33
HS Code:2901233000
WGK Germany:-
RIDADR:UN 1055
Risk Statements:R12
Hazard Codes:F+

GC Analytical Method Total: 31 GC Analytical Method
Kovats' RI, non-polar column, isothermal [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary SE-30 60. 390. Bredael, 1982
Kovats' RI, non-polar column, isothermal [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary OV-1 20. 380. Nijs and Jacobs, 1981
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MSDS


Synthesis Route Total: 1 Synthesis Route
 
75-65-0
92799-96-7
115-11-7
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