Terephthalic

Ter`eph*thal"ic\, a. [Terebene + phthalic.] (Chem.) Of, pertaining to, or designating, a dibasic acid of the aromatic series, metameric with phthalic acid, and obtained, as a tasteless white crystalline powder, by the oxidation of oil of turpentine; -- called also paraphthalic acid. Cf. Phthalic.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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These plasticizers are used similarly to those derived from terephthalic acid ester.
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