| Identification | More | [Name]
1-Pentene | [CAS]
109-67-1 | [Synonyms]
1-AMYLENE
1-PENTENE
ALPHA-AMYLENE
ALPHA-N-AMYLENE
AMYLENE
N-AMYLENE
PENT-1-ENE
PENTENE
PROPYLETHYLENE
TRIMETHYLETHYLENE
1-C5H10
1-Penten
1-Pentene 95
1-pentylene
Pentene-1
1-PENTENE, STANDARD FOR GC
1-PENTENE 98+%
1-N-PENTENE
l-pentene
1-Pentene [Standard Material] | [EINECS(EC#)]
203-694-5 | [Molecular Formula]
C5H10 | [MDL Number]
MFCD00003567 | [Molecular Weight]
70.13 | [MOL File]
109-67-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Pentene is a colorless liquid. | [Melting point ]
-165 °C | [Boiling point ]
29.9-30.1 °C (lit.) | [density ]
0.641 g/mL at 25 °C(lit.)
| [vapor density ]
2.4 (vs air)
| [vapor pressure ]
10.27 psi ( 20 °C)
| [refractive index ]
n20/D 1.371(lit.)
| [Fp ]
−20 °F
| [storage temp. ]
Keep Cold | [solubility ]
alcohol: miscible(lit.) | [form ]
Liquid | [pka]
>14 (Schwarzenbach et al., 1993) | [color ]
Clear colorless | [Specific Gravity]
0.64 | [Odor]
Like gasoline. | [Stability:]
Stable. Incompatible with strong oxidizing agents. Highly flammable-readily forms explosive mixtures with air. | [explosive limit]
8.7% | [Odor Threshold]
0.1ppm | [Water Solubility ]
0.15 g/L (20 ºC) | [Merck ]
14,7122 | [BRN ]
1731629 | [Henry's Law Constant]
0.406 at 25 °C (Hine and Mookerjee, 1975) | [Dielectric constant]
2.1（20℃） | [LogP]
2.4-2.66 at 25℃ | [CAS DataBase Reference]
109-67-1(CAS DataBase Reference) | [NIST Chemistry Reference]
1-Pentene(109-67-1) | [EPA Substance Registry System]
109-67-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F+,Xn,F,Xi | [Risk Statements ]
R12:Extremely Flammable.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R65:Harmful: May cause lung damage if swallowed. | [Safety Statements ]
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 1108 3/PG 1
| [WGK Germany ]
3
| [RTECS ]
SB2179000 | [Autoignition Temperature]
522 °F | [Hazard Note ]
Irritant/Extremely Flammable/Keep Cold | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
I | [HS Code ]
29321900 | [Hazardous Substances Data]
109-67-1(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Colorless liquid with an odor of gasoline. Flash point-20°F(Aldrich). Insoluble in water and less dense than water. Hence floats on water. Flammable vapor is produced. Boiling point 86°F. | [Reactivity Profile]
1-PENTENE(109-67-1) may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. May undergo exothermic polymerization reactions in the presence of various catalysts (such as acids) or initiators. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Health Hazard]
Acts as a simple asphyxiant or weak anesthetic in high vapor concentrations. Similar to effects caused by gasoline vapors. | [Potential Exposure]
Workers in petroleum refineries and petrochemical plants. | [Fire Hazard]
Behavior in Fire: Containers may explode in fire. | [First aid]
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. | [Shipping]
UN1108 1-Pentene, Hazard Class: 3; Labels: 3-Flammable liquid | [Incompatibilities]
Vapors may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Excessive heat may cause polymerization. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, heat. Incompatible with strong reducing agents such as hydrides; oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. | [Chemical Properties]
1-Pentene, C5H10, is a flammable liquid with specific gravity
0.641. It occurs in coal tar and in petroleum cracking
mixtures, and polymerizes on extended periods of storage
(15, 320). | [Waste Disposal]
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed. | [Physical properties]
Clear, colorless, volatile, very flammable liquid with a disagreeable odor. An odor threshold
concentration of 10 ppbv was determined by a triangular odor bag method (Nagata and Takeuchi,
1990). | [Uses]
Blending agent for high octane motor fuel; organic synthesis. | [Production Methods]
1-Pentene is prepared from allyl bromide and ethyl magnesium
bromide in ether or in dipropyl ether. | [Chemical Reactivity]
Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent. | [Source]
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 1-pentene was 8.6 mg/kg of pine burned. Emission rates of 1-pentene were not measured
during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained 1-pentene at a concentration of 1.48 g/kg.
Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic
converters were 0.40 and 51.8 mg/km, respectively (Schauer et al., 2002). | [Environmental Fate]
Biological. Biooxidation of 1-pentene may occur yielding 4-penten-1-ol, which may oxidize to
give 4-pentenoic acid (Dugan, 1972). Washed cell suspensions of bacteria belonging to the genera
Mycobacterium, Nocardia, Xanthobacter, and Pseudomonas and growing on selected alkenes
metabolized 1-pentene to 1,2-epoxypentane. Mycobacterium sp., growing on ethene, hydrolyzed
1,2-epoxypropane to 1,2-propanediol (Van Ginkel et al., 1987).
Photolytic. The following rate constants were reported for the reaction of 1-pentene and OH
radicals in the atmosphere: 1.8 x 10-13 cm3/molecule?sec at 300 K (Hendry and Kenley, 1979); 3.14
x 10-11 cm3/molecule?sec (Atkinson, 1990). Atkinson (1990) also reported a photooxidation rate
constant of 1.10 x 10-17 cm3/molecule?sec for the reaction of 1-pentene and ozone.
Chemical/Physical. Complete combustion in air yields carbon dioxide and water. |
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