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trans-2-Butene

trans-2-Butene structure

CAS No:
624-64-6
Formula:
C4H8
Chemical Name:
trans-2-Butene
Synonyms:
2-Butene,(2E)-;2-Butene,(E)-;2-Butene,trans-;(2E)-2-Butene;trans-2-Butene;2-trans-Butylene;trans-1,2-Dimethylethylene;trans-Butene;(E)-2-Butene;2-trans-Butene;β-trans-Butylene;trans-butene-2;trans-2-Butylene;(E)-2-Butene;E-Butene
Categories:
Chemical Reagents > Organic Reagents

Description

colourless gas 2-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.

trans-2-Butene Basic Attributes

Molecular Weight：

56.11

Exact Mass：

56.11

EC Number：

203-452-9

HScode：

2901232000

Characteristics

PSA：

XLogP3：

2.31

Appearance：

2-butene appears as a colorless liquefied petroleum gas. Asphyxiate gas. Flammability limits in air 1.8-9.7% by volume.

Density：

0.599 g/cm³ @ Temp: 25 °C

Melting Point：

-105.5 °C

Boiling Point：

0.8 °C @ Press: 760 Torr

Flash Point：

<−30 °F

Water Solubility：

Solubility in water: none

Vapor Pressure：

2575 mm Hg ( 37.7 °C)

Vapor Density：

2 (vs air)

Flammability characteristics：

Flammable limits in air 1.8-9.7% by volume cis &

Explosive limit：

9.7%

Odor：

Slightly aromatic odor

Safety Information

Hazard category：

2.1

Transport codes：

UN 1012 2.1

wgk germany：

hazard class code：

12-11

safety instructions：

9-16-33-38

RTECS Number：

EM2932000

Marks：

F,F+

Storage features：

Fireproof. Store outside or in a separate well-ventilated building. Cool.

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents, peroxides, peroxyacids, aluminium tetrahydroborate. Extremely flammable.

Precautionary statement(s)：

P210, P377, P381, P403

Hazard Statements：

H220

Downstream Products

2-BUTANOL

Cumene