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isophthalic acid

noun iso·phthal·ic acid

Definition of isophthalic acid

:a crystalline diacid C6H4(COOH)2 isomeric with phthalic acid made usually by oxidation of meta- xylene and used in making synthetic resins and esters for use as plasticizers; meta- benzene-dicarboxylic acid

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Origin and Etymology of isophthalic acid

isophthalic International Scientific Vocabulary is- + phthalic

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