phthalic anhydride

noun

Definition of phthalic anhydride

: a crystalline cyclic acid anhydride C8H4O3 used especially in making alkyd resins

First Known Use of phthalic anhydride

1855, in the meaning defined above

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The first known use of phthalic anhydride was in 1855

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Cite this Entry

“Phthalic anhydride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phthalic%20anhydride. Accessed 10 May. 2021.

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More Definitions for phthalic anhydride

phthalic anhydride

noun

Medical Definition of phthalic anhydride

: a crystalline cyclic acid anhydride C8H4O3 that is used especially in making alkyd resins and is a structural part of thalidomide

More from Merriam-Webster on phthalic anhydride

Britannica.com: Encyclopedia article about phthalic anhydride

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