phthalic acid

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phthalic acid

n.
The colorless crystalline ortho-isomer of benzene dicarboxylic acid, C8H6O2, used in the synthesis of dyes, perfumes, and other organic compounds.
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 acid

(ˈθælɪk; ˈfθæl-)
n
(Elements & Compounds) a soluble colourless crystalline acid used in the synthesis of dyes and perfumes; 1,2-benzenedicarboxylic acid. Formula: C6H4(COOH)2
[C19 phthalic, from phthal- (see phthalein) +-ic]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

phthal′ic ac′id


n.
any of three colorless, crystalline, isomeric acids having the formula C8H6O4, used chiefly in the manufacture of dyes, medicine, and perfume.
[1855–60]
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 acid - a colorless acid used to make dyes and perfumes
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
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Translations
Phthalsäure
References in periodicals archive ?
The main components of the hexane extract were 9-octadecenoic acid([omega]-9), 9, 12- octadecadienoic acid (linoleic acid or [omega]- 6), hexadecanoic acid, (palmitic acid), 1,2-benzenedicarboxylic acid diisooctyl, dodecane and [gamma]- linolenic acid.
The GC-MS analysis of water extract from calyxes of karkade showed that untreated plants contain 4 bioactive constituents: 3,7,11,15-tetramethyl-2-hexadecen-1-ol; 1,1-bicyclohexyl, 2-(2-methylpropyl)-trans; 3-buten-2-one,4(2-hydroxy-2,6,6-trimethylcyclohexyl); and 1,2-benzenedicarboxylic acid, diisooctyl ester (Table 4).
Those compounds' names and retention times (RT) are 1,2-benzenedicarboxylic acid, dibutyl ester at 5.76 min, hexadecanoic acid, methyl ester at 6.374 min, hexadecanoic acid, 15-methyl-, methyl ester at 7.908 min, 9,12-octadecadienoic acid (Z,Z)-methyl ester at 9.141 min, 8-octadecenoic acid, methyl ester at 9.238 min, and methyl stearate at 9.688 min.
These were: 1-Isopropyl-2, 2-dimethylpropylideneamine, Camphor, Naphthalene, Thymol, 1,5,5- Trimethyl-6-x methylene-cyclohexene, Hexadecanoic acid, methyl ester, 9,12,15 Octadecatrienoic acid, methyl ester, 8, 11, 14-Eicosatrienoic acid and 1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester.
This table shows that 1,2-benzenedicarboxylic acid, mono (2-ethylhexyl) ester (21.04%), [gamma]-sitosterol (16.42%), and 3,7,11,15-tetramethyl-2hexadecen-1-ol (6.34%) are the three main components, followed by hexadecanoic acid, ethyl ester (4.77%), phenol, 2,2'-methylene bis (4.53%), (E)-9-octadecenoic acid ethyl ester (4.11%), and hexadecanoic acid, methyl ester (4.08%).