phthalic acid
phthal·ic acid
noun \ˈtha-lik-\Definition of PHTHALIC ACID
: any of three isomeric acids C8H6O4 obtained by oxidation of various benzene derivatives
Origin of PHTHALIC ACID
International Scientific Vocabulary, short for obsolete naphthalic acid, from naphthalene
First Known Use: 1857
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