phthalic anhydride

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phthalic anhydride

n.
A white crystalline compound, C8H4C3, the anhydride of phthalic acid, used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

phthalic anhydride

n
(Elements & Compounds) a white crystalline substance used mainly in producing dyestuffs. Formula: C6H4(CO)2O
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

phthal′ic anhy′dride


n.
a white, crystalline, slightly water-soluble solid, C8H4O3, used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
[1850–55]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phthalic anhydride - a white cyclic anhydride
anhydride - a compound formed from one or more other compounds in a reaction resulting in removal of water
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References in periodicals archive ?
Phthalic anhydride (Ph[A.sub.n]) (99.98%) was purchased from Arab lab, Dubai, UAE.
Three different anhydrides were used such as maleic anhydride, succinic anhydride, and phthalic anhydride. Diethanolamine (DEA) and diisopropanolamine (DiPA) were involved in such condensation preparative reactions.