naphthionic acid

noun
naph·​thi·​on·​ic acid

Definition of naphthionic acid

: a crystalline naphthylaminesulfonic acid made by baking a mixture of alpha-naphthylamine and sulfuric acid and used in the preparation of Congo red and other dyes; 4-amino-1-naphthalenesulfonic acid

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History and Etymology for naphthionic acid

International Scientific Vocabulary, from naphthylaminesulfonic

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Dictionary Entries Near naphthionic acid

naphthionate

naphthionic acid

naphtho-

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Cite this Entry

“Naphthionic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/naphthionic%20acid. Accessed 21 Oct. 2021.

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