Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Organic Chemistry >  Hydrocarbons and derivatives >  Acyclic hydrocarbons >  trans-2-Pentene

trans-2-Pentene

Basic information Safety Supplier Related

trans-2-Pentene Basic information

Product Name:
trans-2-Pentene
Synonyms:
  • SYM-METHYLETHYLETHYLENE
  • TRANS-2-AMYLENE
  • TRANS-2-PENTENE
  • TRANS-SYM-METHYLETHYLETHYLENE
  • TRANS-B-N-AMYLENE
  • (2E)-2-Pentene
  • (E)-2-Pentene
  • 2-(E)-C5H10
CAS:
646-04-8
MF:
C5H10
MW:
70.13
EINECS:
211-461-4
Product Categories:
  • Acyclic
  • Alkenes
  • Organic Building Blocks
  • Alpha Sort
  • P
  • PA - PEN
  • P-SAlphabetic
  • Volatiles/ Semivolatiles
Mol File:
646-04-8.mol
More
Less

trans-2-Pentene Chemical Properties

Melting point:
-140 °C (lit.)
Boiling point:
37 °C (lit.)
Density 
0.649 g/mL at 25 °C (lit.)
vapor pressure 
8.06 psi ( 20 °C)
refractive index 
n20/D 1.381
Flash point:
−50 °F
storage temp. 
2-8°C
solubility 
Soluble in alcohol, benzene, and ether (Weast, 1986)
pka
>14 (Schwarzenbach et al., 1993)
form 
clear liquid
color 
cis Form: Liquid
Water Solubility 
203 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966)
Merck 
14,7123
BRN 
1718795
Henry's Law Constant
0.234 at 25 °C (Hine and Mookerjee, 1975)
LogP
2.580 (est)
CAS DataBase Reference
646-04-8(CAS DataBase Reference)
EPA Substance Registry System
trans-2-Pentene (646-04-8)
More
Less

Safety Information

Hazard Codes 
F,Xn
Risk Statements 
11-36/37/38-65
Safety Statements 
9-16-26-29-33-36-62
RIDADR 
UN 3295 3/PG 2
WGK Germany 
3
RTECS 
SB2184500
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29012900
Hazardous Substances Data
646-04-8(Hazardous Substances Data)

MSDS

More
Less

trans-2-Pentene Usage And Synthesis

Chemical Properties

clear colourless to slightly yellowish liquid with a disagreeable odor.

Uses

trans-2-Pentene has been used for the calculation of OH levels by the decay method.

General Description

trans-2-Pentene is a colorless liquid with a hydrocarbon smell. It is primarily found in technical grade as a mixture of isomers. It is commonly used as a solvent, in organic synthesis, and as a polymerization inhibitor.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

The unsaturated aliphatic hydrocarbons, such as 2-PENTENE, 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.

Safety Profile

A dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes.

Source

Schauer et al. (1999) reported trans-2-pentene in a diesel-powered medium-duty truck exhaust at an emission rate of 50 μg/km.
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of trans-2-pentene was 16.0 mg/kg of pine burned. Emission rates of trans-2-pentene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained trans-2-pentene at a concentration of 4.12 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.71 and 77.4 mg/km, respectively (Schauer et al., 2002).

Environmental Fate

Chemical/Physical. Complete combustion in air yields carbon dioxide and water.

Purification Methods

It is treated as above and washed with water, dried over anhydrous Na2CO3, and fractionally distilled. The middle cut is purified by two passes of fractional melting. [Beilstein 1 IV 814.]

trans-2-PenteneSupplier

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Email
market03@meryer.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Email
Sales-CN@TCIchemicals.com
Energy Chemical
Tel
021-021-58432009 400-005-6266
Email
sales8178@energy-chemical.com