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[as-fawl-teen or, esp. British, -fal-] /æsˈfɔl tin or, esp. British, -ˈfæl-/
noun, Chemistry
any of the constituents of a bitumen, as asphalt, that are insoluble in pentane, hexane, or naphthalene.
Compare petrolene.
Origin of asphaltene
1830-40; asphalt + -ene Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for asphaltene
  • asphaltene fraction are easily caused the coke formation during the thermal cracking.
  • The solid precipitated this way is called asphaltene.
  • The asphaltene contents in three reaction systems are changed in the similar tendency with cracked residue proportions.
  • The spilled oil is a waxy, light condensate crude with almost no asphaltene content.
  • Iso-octane was also added to the oil samples to precipitate the asphaltene fractions.
  • Oil is defined here as a hexane-soluble fraction and asphaltene as benzene-soluble, hexane-insoluble fraction.

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