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(Top) 1 Reactions 2 Manufacturing 3 References

1-Butene

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1-Butene

Names

Preferred IUPAC name

But-1-ene^[1]

Other names

Ethylethylene
1-Butylene
α-Butylene

Identifiers

CAS Number

106-98-9^Y

3D model (JSmol)

Interactive image

Interactive image

Beilstein Reference

1098262

ChEBI

CHEBI:48362^Y

ChEMBL

ChEMBL117210^Y

ChemSpider

7556^Y

ECHA InfoCard

100.003.137

EC Number

203-449-2

Gmelin Reference

25205

PubChem CID

7844

UNII

LY001N554L^Y

UN number

1012

CompTox Dashboard (EPA)

DTXSID1026746

InChI

InChI=1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3^Y

Key: VXNZUUAINFGPBY-UHFFFAOYSA-N^Y
InChI=1/C4H8/c1-3-4-2/h3H,1,4H2,2H3

Key: VXNZUUAINFGPBY-UHFFFAOYAZ

SMILES

C=CCC
CCC=C

Properties

Chemical formula

C₄H₈

Molar mass

56.108 g·mol⁻¹

Appearance

Colorless Gas

Odor

slightly aromatic

Density

0.62 g/cm³

Melting point

−185.3 °C (−301.5 °F; 87.8 K)

Boiling point

−6.47 °C (20.35 °F; 266.68 K)

Solubility in water

0.221 g/100 mL

Solubility

soluble in alcohol, ether, benzene

Refractive index (n_D)

1.3962

Viscosity

7.76 Pa

Hazards

GHS labelling:

Pictograms

Signal word

Danger

Hazard statements

H220, H221, H280

Precautionary statements

P210, P377, P381, P403, P410+P403

NFPA 704 (fire diamond)

Flash point

−79 °C; −110 °F; 194 K

Autoignition
temperature

385 °C (725 °F; 658 K)

Explosive limits

1.6-10%

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is ^YN ?)

Infobox references

1-Butene (IUPAC name: But-1-ene, also known as 1-butylene) is the organic compound with the formula CH₃CH₂CH=CH₂. It is a colorless gas. But-1-ene is an alkene easily condensed to give a colorless liquid. It is classified as a linear alpha-olefin (terminal alkene).^[2] It is one of the isomersofbutene (butylene). It is a precursor to diverse products.

Reactions[edit]

Polymerization of but-1-ene gives polybutylene, which is used to make piping for domestic plumbing.^[3] Another application is as a comonomer in the production of certain kinds of polyethylene, such as linear low-density polyethylene (LLDPE).^[4] It has also been used as a precursor to polypropylene resins, butylene oxide, and butanone.^[5]

Manufacturing[edit]

But-1-ene is produced by separation from crude C₄ refinery streams and by ethylene dimerization. The former affords a mixture of 1-and 2-butenes, while the latter affords only the terminal alkene.^[6] It is distilled to give a very high purity product. An estimated 12 billion kilograms were produced in 2011.^[7]

References[edit]

^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. pp. 17, 61, 374. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.

^ "1-BUTENE". chemicalland21.com. Retrieved 22 April 2018.

^ Whiteley, Kenneth S.; Heggs, T. Geoffrey; Koch, Hartmut; Mawer, Ralph L.; Immel, Wolfgang (2000). "Polyolefins". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a21_487. ISBN 978-3527306732.

^ Chum, P. Steve; Swogger, Kurt W. (2008). "Olefin polymer technologies—History and Recent Progress at the Dow Chemical Company". Progress in Polymer Science. 33 (8): 797–819. doi:10.1016/j.progpolymsci.2008.05.003.

^ "1-Butene product overview". shell.com. Archived from the original on 2012-02-10. Retrieved 22 April 2018.

^ "Alphabutol process - Big Chemical Encyclopedia". chempedia.info. Archived from the original on 2017-12-08. Retrieved 22 April 2018.

^ Geilen, Frank M.A.; Stochniol, Guido; Peitz, Stephan; Schulte-Koerne, Ekkehard (2014). "Butenes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a04_483.pub3. ISBN 978-3527306732.