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phthalic anhydride
noun
, Chemistry.
- a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
phthalic anhydride
noun
- a white crystalline substance used mainly in producing dyestuffs. Formula: C 6 H 4 (CO) 2 O
phthalic anhydride
- A white crystalline compound prepared by oxidizing naphthalene and used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. Chemical formula: C 8 H 4 O 3 .
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Word History and Origins
Origin of phthalic anhydride1
First recorded in 1850–55
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Example Sentences
The phthaleïn formed from gallic acid and phthalic anhydride really results from the union of the latter with pyrogallol.
From Project Gutenberg
It condenses with phthalic anhydride to form rhodamine, and with succinic anhydride to rhodamine S.
From Project Gutenberg
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