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toluene

[tol-yoo-een] /ˈtɒl yuˌin/
noun, Chemistry
1.
a colorless, water-insoluble, flammable liquid, C 7 H 8 , having a benzenelike odor, obtained chiefly from coal tar and petroleum: used as a solvent in the manufacture of benzoic acid, benzaldehyde, TNT, and other organic compounds.
Origin of toluene
1870-1875
1870-75; tolu + -ene
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for toluene
Historical Examples
  • What then is the effect of toluene on the living yeast-cell?

    Alcoholic Fermentation Arthur Harden
  • It is possible to start from benzene, toluene or naphthalene.

    Creative Chemistry Edwin E. Slosson
  • Already we see that benzene, toluene, solvent naphtha, and burning naphtha are separated from them.

    Coal Raphael Meldola
  • That phenomena of this kind may be involved is shown by the remarkable effect of toluene on the autofermentation of yeast.

    Alcoholic Fermentation Arthur Harden
  • For the first six months only toluene sling thermometers were used.

  • From benzene and toluene alone about forty distinct colouring-matters of the rosaniline group are sent into commerce.

    Coal Raphael Meldola
  • The starting-point in this synthesis is nitrobenzoic aldehyde, so that here again we begin with toluene as a raw material.

    Coal Raphael Meldola
  • Other dyes derived directly or indirectly from phenol will take us back once again to toluene.

    Coal Raphael Meldola
  • A solution of hydrogen chloride in a poorly ionizing medium, like benzene or toluene, is an extremely poor conductor.

  • Thus the artificial production of bitter-almond oil from toluene has already been explained.

    Coal Raphael Meldola
British Dictionary definitions for toluene

toluene

/ˈtɒljʊˌiːn/
noun
1.
a colourless volatile flammable liquid with an odour resembling that of benzene, obtained from petroleum and coal tar and used as a solvent and in the manufacture of many organic chemicals. Formula: C6H5CH3
Word Origin
C19: from tolu + -ene, since it was previously obtained from tolu
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for toluene
n.

colorless liquid hydrocarbon, 1871, from German toluin (Berzelius, 1842), from Tolu, place in Colombia (now Santiago de Tolu) from which balsam of Tolu was obtained from the bark of certain trees. The chemical so called because it was first distilled from balsam of Tolu.

Online Etymology Dictionary, © 2010 Douglas Harper
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toluene in Science
toluene
  (tŏl'y-ēn')   
A clear, toxic, flammable liquid that is used in fuels, explosives, dyes, medicines, and many industrial chemicals. Toluene consists of a methyl group attached to benzene. Also called methylbenzene. Chemical formula: C7H8.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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7
10
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