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ChemicalBook--->CAS DataBase List--->25167-67-3

25167-67-3

25167-67-3 Structure

25167-67-3 Structure
IdentificationBack Directory
[Name]

butene
[CAS]

25167-67-3
[Synonyms]

N-BUTYLENE)
[EINECS(EC#)]

246-689-3
[Molecular Formula]

C4H8
[MOL File]

25167-67-3.mol
[Molecular Weight]

56.11
Chemical PropertiesBack Directory
[Appearance]

A colorless liquefied petroleum gas. Soluble in most organic solvents; insoluble in water.
[Melting point ]

-145 °C
[Boiling point ]

-1.3 °C
[density ]

0.598[at 20℃]
[vapor pressure ]

837.25kPa at 25℃
[Water Solubility ]

242.5mg/L at 25℃
[LogP]

2.35 at 20℃
[Uses]

Polymer and alkylate gasoline; polybutenes; butadiene; intermediate for C 4 and C 5 aldehy- des, alcohols, and other derivatives; production of maleic anhydride by catalytic oxidation.
[EPA Substance Registry System]

Butene (25167-67-3)
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

Fumaric acid-->Warfarin-->2-Butanol-->2-(1-methylpropyl)phenol,2-sec-buty phenol-->Vanillic acid-->2,3-Dimethyl-2-butene
Hazard InformationBack Directory
[General Description]

An easily liquefied colorless gas boiling from 20.7 to 38°F. Insoluble in water. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Any leak can be either liquid or vapor. Can asphyxiate by the displacement of air. Under prolonged exposure to intense heat containers may rupture violently and rocket.
[Air & Water Reactions]

Highly flammable. Insoluble in water.
[Reactivity Profile]

butene may react vigorously with strong oxidizing agents. Easily ignited and burns well in air. Reacts exothermically with reducing agents to release gaseous hydrogen.
[Health Hazard]

May act as an asphyxiant or slight anesthetic at high vapor concentrations. Vapor concentrations are not usually a hazard at room temperature except in enclosed spaces.
[Fire Hazard]

Behavior in Fire: Containers may explode in fire. Vapor is heavier than air and may travel long distance to a source of ignition and flash back.
[Hazard]

Asphyxiant gas. Highly flammable, flammable limits in air 1.6–9.3% by volume. Dan- gerous fire and explosion risk.
[Chemical Properties]

A colorless liquefied petroleum gas. Soluble in most organic solvents; insoluble in water.
[Definition]

ChEBI: But-1-ene is a butene with unsaturation at position 1.
[Flammability and Explosibility]

Extremelyflammable
Safety DataBack Directory
[Safety Profile]

A simple asphyxlant. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. To fight fire, stop flow of gas. Moderately explosive when exposed to flame. Mxtures with aluminum tetrahydroborate explode after an induction period. When heated to decomposition it emits acrid smoke and fumes.
[Hazardous Substances Data]

25167-67-3(Hazardous Substances Data)
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