phthalic anhydride


nounChemistry.
  1. a white, crystalline, slightly water-soluble solid, C8H4O3, used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.

Origin of phthalic anhydride

1
First recorded in 1850–55

Words Nearby phthalic anhydride

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How to use phthalic anhydride in a sentence

  • The phthaleïn formed from gallic acid and phthalic anhydride really results from the union of the latter with pyrogallol.

    Coal | Raphael Meldola
  • It condenses with phthalic anhydride to form rhodamine, and with succinic anhydride to rhodamine S.

British Dictionary definitions for phthalic anhydride

phthalic anhydride

noun
  1. a white crystalline substance used mainly in producing dyestuffs. Formula: C 6 H 4 (CO) 2 O

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

Scientific definitions for phthalic anhydride

phthalic anhydride

  1. A white crystalline compound prepared by oxidizing naphthalene and used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. Chemical formula: C8H4O3.

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