2-METHYL-1-BUTENE Property

Melting point:

−137 °C(lit.)

Boiling point:

31 °C(lit.)

Density 

0.65 g/mL at 25 °C(lit.)

vapor pressure 

9.98 psi ( 20 °C)

refractive index 

n20/D 1.378(lit.)

Flash point:

31-32°C

storage temp. 

2-8°C

solubility 

Chloroform (Sparingly), Methanol (Slightly)

color 

Colorless to Almost colorless

Water Solubility 

Soluble in ether, ethanol and benzene. Insoluble in water.

BRN 

505975

Dielectric constant

2.2000000000000002

Stability:

Stable. Incompatible with oxidizing agents. Extremely flammable.

CAS DataBase Reference

563-46-2(CAS DataBase Reference)

EPA Substance Registry System

2-Methyl-1-butene (563-46-2)

Safety

Hazard Codes 

F+,Xn,Xi

Risk Statements 

12-65

Safety Statements 

16-62-33-29-7/9

RIDADR 

UN 2459 3/PG 1

WGK Germany 

3

Hazard Note 

Irritant

TSCA 

Yes

HazardClass 

3

PackingGroup 

I

HS Code 

29012990

Hazardous Substances Data

563-46-2(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H224Extremely flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

2-METHYL-1-BUTENE Chemical Properties,Usage,Production

Chemical Properties

colourless liquid

Uses

Organic synthesis, pesticide formulations.

Uses

2-Methyl-1-butene is used as a solvent in organic synthesis. It is also used in the preparation of pinacolone, flavor enhancer, spice, crop protectants and tertiary amyl phenol. Further, it serves as a photosensitive material and concrete dispersant. In addition to this, it is used as a fuel and fuel additive.

Definition

ChEBI: An alkene that is but-1-ene carrying a methyl substituent at position 2.

General Description

A colorless volatile liquid with a disagreeable odor. Insoluble in water and less dense than water. Flash point below 0°F. Vapors are heavier than air. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

The unsaturated aliphatic hydrocarbons, such as 2-METHYL-1-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.

Hazard

Highly flammable, dangerous fire and explosion risk.

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.

Safety Profile

A simple asphyxiant. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. To fight fire, use dry chemical, CO2, foam. When heated to decomposition it emits acrid smoke and irritating fumes.