Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration. Uses Phthalate esters plasticizers. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction.
Phthalic anhydride is extensively used in the production of phthalate plasticizers for making polyvinyl chloride (PVC). The other significant applications of phthalic anhydride include unsaturated polyester resins (UPR), alkyd resins, dyes & pigments, flame retardant, and others (rubber scorch inhibitor, insecticide, herbicide, detergent,.
Phthalic anhydride has another major use in the production of polyester resins and other minor uses in the production of alkyd resins used in paints and lacquers, certain guys, insect repellents, and urethane polyester polyols. Phthalic anhydride has also been used as a rubber scorch inhibitor and retarder.
Phthalic Anhydride. Phthalic Anhydride (PA) is used as the major ingredient in the manufacture of plasticizers, unsaturated polyester resin, paint and others. Our PA Plant is a manufacturing plant which opened for the first time in the Republic of Korea. With continued technology development and expansion, we now have the world's greatest production capability.
Phthalic anhydride is used in plasticizers; in the manufacture of phthaleins; benzoic acid; alkyd and polyester resins; synthetic indigo; and phthalic acid;which is used as a plasticizer for vinyl resins.
Sigma-Aldrich offers a number of Phthalic anhydride products. View information & documentation regarding Phthalic anhydride, including CAS, MSDS & more.
Phthalic anhydride in the United States from 1990 to 2017 (in 1,000 metric tons) by M. Garside, last edited Sep 9, 2019
by oral application phthalic anhydride is of low systemic toxicity. Phthalic anhydride is rapidely hydrolysed to phthalic acid in contact with water, due to the ionic character of this compound only a marginal penetration though the skin barrier is expected For humans, phthalic anhydride in the form of
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