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Definition of the noun Allene

What does Allene mean as a name of something?


  1. [organic chemistry] Any of a class of hydrocarbons having two double bonds from one carbon atom to two others - R2C=C=CR2; especially the parent compound CH2=C=CH2 (propadiene).
  2. [organic chemistry] Any derivative of such hydrocarbons.


"Allene" is a musical album of André Manuel.

  • released on (8 years ago)


Allene: An allene is a compound in which one carbon atom has double bonds with each of its two adjacent carbon centres. Allenes are classified as polyenes with cumulated dienes. The parent compound of allene is propadiene. Compounds with an allene-type structure but with more than three carbon atoms are called cumulenes. Allenes are much more reactive than most other alkenes. For example, their reactivity with gaseous chlorine is more like the reactivity of alkynes than that of alkenes.

  • also known as 累积二烯烃

Printed dictionaries and other books with definitions for Allene

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Google previewHandbook of Chemicals and Safety (2016)

by T.S.S. Dikshith

Toxicity and health effects Allene is a simple asphyxiant with slight narcotic properties. Exposures to allene cause irritation to the skin and eyes, nausea, vomiting, headache, symptoms of drunkenness, suffocation, convulsions, and coma.

Google previewCod-liver Oil and Chemistry (1895)

by Frantz Peckel Møller, Peter Møller Heyerdahl

1 t 9 9 T t T O METHYL o Butylene, CtH8 Mothyl-allene, C4Ha ; b.p. 18° Methyl- allene is a normal di-ethylene. If we remove from the same compound two atoms of.

Google previewElectron Spin Resonance (2007)

Volume 11A

Allene is an interesting alkene as metal atoms can add to either the central carbon (to give ČH2CX=CH2) or to the terminal carbon (to give CH2=&CH2X). The hyperfine parameters of these radicals, formed in rotating cryostat experiments at ...

Google previewAssessment of Chemical Exposures (1997)

Calculation Methods for Environmental Professionals by Jack E. Daugherty

Allene is an unstable organic gas having two double carbon bonds, C=C=C. Another unstable double carbon bond is the diene structure such as 1 ,3- butadiene, C=C-C=C, 1,2-butadiene, C-C-C=C, and 1 ,4-butadiene, C-C=C-C. Unsaturated ...

Google previewAromatic Organic Chemistry (2006)

by Amit Arora

Allene is a gas. b.p. - 32 C. With bromine it forms tetrabromopropane: with sulphuric and it forms acetone and when treated with sodium in ether, the sodium derivative of propyne is produced. (a) CH, = C = CH, CH.C(OH,) = CH CH ...

Google previewOrganic Chemistry , Biological Approach (2016)

by CTI Reviews

An allene is a hydrocarbon in which one atom of carbon is connected by double bonds with two other atoms of carbon.

Google previewRailroad Gazette (1893)

Allene is a new town less than 10 miles north of Wilton, Ark., which has been the northern terminus since January last. Texas & Gulf.—The grading was begun south of Marshall, Tex., a few weeks ago with a small force. The officers state that ...

Google previewEncyclopedia of Surface and Colloid Science - (2002)

by Arthur T. Hubbard

Heterogeneous decomposition of allene ...

Google previewConcise Polymeric Materials Encyclopedia (1998)

by Joseph C. Salamone

ALLENE POLYMERIZATION initially acidic. The reduced molecular weight affects the film properties of the emulsion-based coating (most noticeably the film hardness), while the changes in acid number and pH may affect stability and ...

Google previewThe Concise Encyclopedia of American Radio (2010)

by Christopher H. Sterling, Cary O'Dell

org Koenig, AllenE., “Labor Relations intheBroadcasting Industry: Periodical ...

Google previewThe Greenwood Encyclopedia of Science Fiction and Fantasy (2005)

Themes, Works, and Wonders by Gary Westfahl

Allene Stuart Phy. Mary Shelley. Mercer Island, WA: Starmont House, 1988. Leonard Wolf, ed. The Annotated Frankenstein, by Mary Shelley. New York: Clarkson N. Potter, Inc. 1977. — Darrell Schweitzer From the Earth to the Moon by Jules ...

Google previewOxford English Dictionary Additions Series (1997)

by John A. Simpson, E. S. C. Weiner

allene, n. Substitute for entry: allene ('aelizn), n.

Google previewEncyclopedia of American Humorists (2016)

by Steven H. Gale

293 Talmadge, Norma, 293 Talmey, Allene,

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Allene Meaning

Video shows what allene means. Any of a class of hydrocarbons having two double bonds from one carbon atom to two others - R2C=C=CR2, especially the ...

Scrabble value of A1L1L1E1N1E1

The value of this 6-letter word is 6 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

Anagrams of ALLENE

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