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trans-2-Pentene

Product Name
trans-2-Pentene
CAS No.
646-04-8
Chemical Name
trans-2-Pentene
Synonyms
2-PENTENE;AMYLENE;2-AMYLENE;2-(E)-C5H10;B-N-AMYLENE;(E)-3-Pentene;(E)-2-Pentene;(2E)-2-Pentene;2-pentene,(E)-;rans-2-Pentene
CBNumber
CB4750723
Molecular Formula
C5H10
Formula Weight
70.13
MOL File
646-04-8.mol
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trans-2-Pentene Property

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)
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Safety

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)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H224Extremely flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P233Keep container tightly closed.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P331Do NOT induce vomiting.

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

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
111260
Product name
trans-2-Pentene
Purity
99%
Packaging
1g
Price
$71.1
Updated
2024/03/01
Sigma-Aldrich
Product number
111260
Product name
trans-2-Pentene
Purity
99%
Packaging
5g
Price
$293
Updated
2024/03/01
TCI Chemical
Product number
P0635
Product name
trans-2-Pentene
Purity
>99.0%(GC)
Packaging
10mL
Price
$171
Updated
2024/03/01
Alfa Aesar
Product number
L09421
Product name
trans-2-Pentene
Purity
99%
Packaging
5g
Price
$137
Updated
2024/03/01
Sigma-Aldrich
Product number
111260
Product name
trans-2-Pentene
Purity
99%
Packaging
10g
Price
$364
Updated
2024/03/01
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trans-2-Pentene Chemical Properties,Usage,Production

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-Pentene Preparation Products And Raw materials

Raw materials

Preparation Products

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trans-2-Pentene Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
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Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
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Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
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Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9815
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Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
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Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17770
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75
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Tel
025-66099280 17798518460
Fax
(1)02557626880
Email
cfzhang@aikonchem.com
Country
China
ProdList
19915
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