- of or derived from phthalic acid.
Origin of phthalic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for phthalic
Dilute nitric acid oxidizes it to phthalic acid, and sodium reduces it in alcoholic solution to hydrindene, C9H10.
The phthaleïn formed from gallic acid and phthalic anhydride really results from the union of the latter with pyrogallol.
Phthalic acid, which was discovered in 1836 by Laurent, is a product of the oxidation of many benzenoid compounds.
It condenses with phthalic anhydride to form rhodamine, and with succinic anhydride to rhodamine S.
- Relating to or derived from naphthalene.
- Relating to phthalic acid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.