2-Methyl-2-butene
(Redirected from Trimethylethylene)
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| Names | |
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| Preferred IUPAC name
2-Methylbut-2-ene | |
| Other names
β-Isoamylene
Trimethylethylene 2-Methyl-2-butene Isoamylene | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
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PubChem CID
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| UNII | |
| UN number | 2460 |
CompTox Dashboard (EPA)
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| Properties | |
| C5H10 | |
| Molar mass | 70.1329 g/mol |
| Appearance | Colorless liquid |
| Odor | Sweet |
| Density | 0.662 g/cm3 |
| Melting point | −134 °C (−209 °F; 139 K) |
| Boiling point | 39 °C (102 °F; 312 K) |
| Slightly soluble | |
| Solubility in alcohols, ether | Miscible |
| −54.14·10−6 cm3/mol | |
Refractive index (nD)
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1.385 |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Mildly toxic, flammable |
| Flash point | < −45 °C (−49 °F; 228 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Methyl-2-butene, 2m2b, 2-methylbut-2-ene, beta-isoamylene, or trimethylethylene is an alkene hydrocarbon with the molecular formula C5H10. It is a flammable liquid.
Used as a free radical scavenger in trichloromethane and dichloromethane. It is also used to scavenge hypochlorous acid (HOCl) in the Pinnick oxidation.
John Snow, the English physician, experimented with it in the 1840s as an anesthetic.[4]
