{Phthalic acid} (Chem.), a white crystalline substance, {C6H4.(CO2H)2}, analogous to benzoic acid, and employed in the brilliant dyestuffs called the phthaleins. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
phthalic — Naphthalic Naph*tha lic, a. (Chem.) (a) Pertaining to, derived from, or related to, naphthalene; formerly used to denote any one of a series of acids derived from naphthalene, and called naphthalene acids, now specifically referring to 1,8… … The Collaborative International Dictionary of English
phthalic — /thal ik, fthal /, adj. Chem. of or derived from phthalic acid. [1855 60; (NA)PHTHAL(ENE) + IC] * * * … Universalium
phthalic — adjective of, relating to, or derived from naphthalene or phthalic acid … Wiktionary
phthalic — phthal•ic [[t]ˈθæl ɪk, ˈfθæl [/t]] adj. chem. of or derived from phthalic acid • Etymology: 1855–60; (na) phthal (ene) + ic … From formal English to slang
phthalic — /thal ik, fthal /, adj. Chem. of or derived from phthalic acid. [1855 60; (NA)PHTHAL(ENE) + IC] … Useful english dictionary
Phthalic acid — Phthalic acid … Wikipedia
Phthalic acid — Phthalic Phthal ic, a. [Naphthalene + ic.] (Chem.) Pertaining to, or designating, a dibasic acid obtained by the oxidation of naphthalene and allied substances. [1913 Webster] {Phthalic acid} (Chem.), a white crystalline substance, {C6H4.(CO2H)2} … The Collaborative International Dictionary of English
phthalic acid — [thal′ik, fthal′ik as′id] n. [(NA)PHTHAL(ENE) + IC] any of three isomeric acids, C6H4 (COOH) 2, esp. one ( ortho phthalic acid) obtained by oxidation of naphthalene or xylene and used in the manufacture of dyes, medicines, etc … English World dictionary
phthalic anhydride — n a crystalline cyclic acid anhydride C8H4O3 that is used esp. in making alkyd resins and is a structural part of thalidomide * * * a reactive, low molecular weight compound with a wide variety of industrial uses, including the manufacture of… … Medical dictionary
phthalic anhydride — n. a white, solid substance, C6H4 (CO) 2O, produced by the oxidation of naphthalene and used to make the phthalein dyes, certain synthetic resins, etc … English World dictionary
