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
- Molecular Weight:
- 70.13
- MDL Number:
- MFCD00009384
- MOL File:
- 646-04-8.mol
- MSDS File:
- SDS
| 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 |
n |
| 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) |
| FDA UNII | YCO1SJQ98H |
| EPA Substance Registry System | trans-2-Pentene (646-04-8) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H224-H304-H315-H319-H335 | |||||||||
| Precautionary statements | P210-P233-P301+P310-P303+P361+P353-P331-P403+P233 | |||||||||
| 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) | |||||||||
| NFPA 704 |
|
trans-2-Pentene price More Price(9)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 111260 | trans-2-Pentene 99% | 646-04-8 | 1g | $71.1 | 2024-03-01 | Buy |
| Sigma-Aldrich | 111260 | trans-2-Pentene 99% | 646-04-8 | 5g | $293 | 2024-03-01 | Buy |
| TCI Chemical | P0635 | trans-2-Pentene >99.0%(GC) | 646-04-8 | 10mL | $171 | 2024-03-01 | Buy |
| Alfa Aesar | L09421 | trans-2-Pentene 99% | 646-04-8 | 5g | $137 | 2024-03-01 | Buy |
| Sigma-Aldrich | 111260 | trans-2-Pentene 99% | 646-04-8 | 10g | $364 | 2024-03-01 | Buy |
trans-2-Pentene Chemical Properties,Uses,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
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | China | 52849 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +8618058761490 | info@gihichemicals.com | China | 49982 | 58 |
| LEAPCHEM CO., LTD. | +86-852-30606658 | market18@leapchem.com | China | 43340 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43416 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32343 | 55 |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 8670 | 58 |
| J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 021-61259108 18621169109 | market03@meryer.com | China | 40228 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30123 | 84 |
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