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| 2-Methyl-1-pentene Basic information |
| 2-Methyl-1-pentene Chemical Properties |
| Melting point | -136 °C | | Boiling point | 62 °C(lit.) | | density | 0.682 g/mL at 25 °C(lit.) | | vapor pressure | 325 mm Hg ( 37.7 °C) | | refractive index | n20/D 1.392(lit.) | | Fp | −15 °F | | storage temp. | 0-6°C | | solubility | Soluble in alcohol, benzene, chloroform, petroleum (Weast, 1986); miscible in pentane,
cyclohexene, and other hydrocarbons. | | form | Liquid | | color | Clear colorless | | Water Solubility | Insoluble in water. | | BRN | 1340499 | | Henry's Law Constant | 0.28 atm?m3/mol at 25 °C (Mackay and Shiu, 1981) | | CAS DataBase Reference | 763-29-1(CAS DataBase Reference) | | EPA Substance Registry System | 2-Methyl-1-pentene (763-29-1) |
| Hazard Codes | F | | Risk Statements | 11 | | Safety Statements | 9-16-29-33 | | RIDADR | UN 2288 3/PG 2 | | WGK Germany | 3 | | RTECS | SB2230000 | | F | 10-23 | | Autoignition Temperature | 572 °F | | TSCA | Yes | | HazardClass | 3.1 | | PackingGroup | II | | HS Code | 29012900 | | Toxicity | LC50 (inhalation) for mice 127 g/m3/2-h, rats 115 g/3/4-h (quoted, RTECS, 1985). |
| 2-Methyl-1-pentene Usage And Synthesis |
| Chemical Properties | CLEAR COLOURLESS LIQUID | | Physical properties | Clear, colorless flammable liquid with an unpleasant hydrocarbon odor. | | Uses | 2-Methyl-1-pentene is prepared from 2-Methyl-1-pentene. 2-methyl-1-pentene is used in copolymerization of ethylene catalyzed by nonbridged half-titanocenes. The isomerization of 2-methyl-1-pentene leads to anionic activation of c-h bonds in olefins. | | Uses | Organic synthesis, flavors, perfumes,medicines, dyes, oils, resins. | | General Description | Colorless liquid. Flash point -15°F. Floats on water. Irritating vapor. | | Air & Water Reactions | Highly flammable. Insoluble in water. | | Reactivity Profile | 2-Methyl-1-pentene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions. | | Hazard | Flammable, dangerous fire risk. | | Health Hazard | INHALATION: May produce anesthetic effects. EYES: Moderate eye irritation possible. | | Fire Hazard | Behavior in Fire: Can react vigorously with oxidizing materials. | | Source | California Phase II reformulated gasoline contained 2-methyl-1-pentene at a
concentration of 1.25 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles
with and without catalytic converters were 0.23 and 26.6 mg/km, respectively (Schauer et al.,
2002). | | Environmental fate | Photolytic. The reported reaction rate constants for the reaction of 2-methyl-1-pentene with OH
radicals and ozone in the atmosphere are 1.05 x 10-17 and 6.26 x 10-11 cm3/molecule?sec,
respectively (Atkinson and Carter, 1984; Atkinson, 1985).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water. | | Purification Methods | Water is removed, and formation of peroxides is prevented by several vacuum distillations of 2-methyl-1-pentene from sodium. It is stored with sodium-potassium alloy. [Beilstein 1 IV 841.] |
| 2-Methyl-1-pentene Preparation Products And Raw materials |
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