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Isophthalic acid, 99% Cas 121-91-5 - used as an intermediate primarily for unsaturated polyester resins and alkyd and polyester coating resins; other applications include use in aramid fibers, as a component of copolyester resins and in high-temperature polymers.
Purified isophthalic acid (PIA) is mainly used as an intermediate in the production of unsaturated polyester resins, followed by polyester and alkyd resins (mainly for surface coatings) and inks, reinforced plastics and packaging applications.
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.
Isophthalic acid is produced on the billion kilogram per year scale by oxidizing meta-xylene using oxygen. The process employs a cobalt-manganese catalyst. The world's largest producer of isophthalic acid is Lotte Chemical Corporation.
ISOPHTHALIC ACID 99%
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