Phthalic anhydride

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Phthalic anhydride is white needle-like crystals with a slight odor. Phthalic anhydride is slightly soluble in hot water and ether, and soluble in ethanol, benzene.
Phthalic anhydride is one of the important organic chemical raw materials, used to produce plasticizers, alkyd resins, unsaturated polyester resins, dyes and pigments, medicines and pesticides, etc.
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