Why cotton is used for preparation of phthalimide from phthalic anhydride?
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TCC's phthalic anhydride is a toxic, white crystalline compound used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. Phthalic anhydride is the anhydride of phthalic acid.Phthalic Anhydride (PA) Production and Manufacturing Process. Phthalic anhydride was first produced by the oxidation of naphthalene in concentrated sulphuric acid in the presence of mercury sulphate.
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