| Identification | More | [Name]
TRANS-2-PENTENE | [CAS]
646-04-8 | [Synonyms]
2-AMYLENE
2-PENTENE
AMYLENE
B-N-AMYLENE
SYM-METHYLETHYLETHYLENE
TRANS-2-AMYLENE
TRANS-2-PENTENE
TRANS-B-N-AMYLENE
TRANS-SYM-METHYLETHYLETHYLENE
(2E)-2-Pentene
(E)-2-Pentene
2-(E)-C5H10
2-pentene,(E)-
2-trans-Pentene
beta-amylene-trans
trans-beta-Amylene
trans-beta-n-amylene
trans-pent-2-ene
trans-Pentene-2
TRANS-2-PENTENE, 1000MG, NEAT | [EINECS(EC#)]
203-695-0 | [Molecular Formula]
C5H10 | [MDL Number]
MFCD00009384 | [Molecular Weight]
70.13 | [MOL File]
646-04-8.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colourless to slightly yellowish liquid | [Melting point ]
-140 °C (lit.) | [Boiling point ]
37 °C (lit.) | [density ]
0.651 g/mL at 20 °C(lit.)
| [vapor pressure ]
8.06 psi ( 20 °C)
| [refractive index ]
n20/D 1.381
| [Fp ]
−50 °F
| [storage temp. ]
2-8°C | [solubility ]
Soluble in alcohol, benzene, and ether (Weast, 1986) | [form ]
clear liquid | [pka]
>14 (Schwarzenbach et al., 1993) | [color ]
cis Form: Liquid | [Water Solubility ]
203 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966) | [Specific Heat Capacity]
Cp(liquid):157J/(g·K),at 25℃ | [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) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xn | [Risk Statements ]
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R65:Harmful: May cause lung damage if swallowed. | [Safety Statements ]
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S29:Do not empty into drains .
S33:Take precautionary measures against static discharges .
S36:Wear suitable protective clothing .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label . | [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) |
| Hazard Information | Back Directory | [General Description]
Colorless liquid with a hydrocarbon odor. Usually in technical grade as a mixture of isomers. Used as a solvent, in organic synthesis, and as a polymerization inhibitor. | [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. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Chemical Properties]
clear colourless to slightly yellowish liquid | [Physical properties]
Clear, colorless, very flammable liquid with a disagreeable odor. | [Uses]
trans-2-Pentene has been used for the calculation of OH levels by the decay method. | [Uses]
Polymerization inhibitor; organic synthesis. | [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.] |
|
| Company Name: |
J & K SCIENTIFIC LTD.
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| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
Alfa Aesar
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400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
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| Telephone: |
400-0056266 |
| Website: |
www.energy-chemical.com |
| Company Name: |
Maya High Purity Chemicals
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| Telephone: |
+86 (573) 82222445 (0)18006601000 452520369 |
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www.chemicalbook.com/ShowSupplierProductsList15221/0_EN.htm |
| Company Name: |
Sigma-Aldrich
|
| Telephone: |
021-61415566 800-8193336 |
| Website: |
https://www.sigmaaldrich.cn |
| Company Name: |
Rhawn Reagent
|
| Telephone: |
400-400-1332688 18019345275 |
| Website: |
http://www.rhawn.cn |
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