Hexene

In organic chemistry, hexene is a hydrocarbon with the chemical formula . The prefix "hex" is derived from the fact that there are 6 carbon atoms in the molecule, while the "-ene" suffix denotes that there is an alkene present—two carbon atoms are connected via a double bond. There are several isomers of hexene,Hexene, Merriam-Webster Dictionary depending on the position and geometry of the double bond in the chain. One of the most common industrially useful isomers is 1-hexene, an alpha-olefin. Hexene is used as a comonomer in the production of polyethylene.

Isomers The following is a partial list of hexenes.

Name Structural formula CAS Number Melting point(°C) Boiling point(°C) Density(g/cm3) Refractive index(589 nm) 1-hexene 592-41-6 −139.76 63.48 0.6685 (25 °C) 1.3852 (25 °C) (E)-2-hexene 4050-45-7 −133 67.9 0.6733 (25 °C) 1.3936 (20 °C) (Z)-2-hexene 7688-21-3 −141.11 68.8 0.6824 (25 °C) 1.3979 (20 °C) (E)-3-hexene 13269-52-8 −115.4 67.1 0.6772 (20 °C) 1.3943 (20 °C) (Z)-3-hexene 7642-09-3 −137.8 66.4 0.6778 (20 °C) 1.3947 (20 °C)

There are a total of 13 different alkene isomers of hexene, excluding additional geometric (E/Z) and optical (R/S) isomers:

hex-1-ene hex-2-ene (E/Z) hex-3-ene (E/Z) 2-methylpent-1-ene 3-methylpent-1-ene (R/S) 4-methylpent-1-ene 2-methylpent-2-ene 3-methylpent-2-ene (E/Z) 4-methylpent-2-ene (E/Z) 2,3-dimethylbut-1-ene 3,3-dimethylbut-1-ene 2-ethylbut-1-ene 2,3-dimethylbut-2-ene

Hexene

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