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-naphthalenedicaboxylic acid, {C12H8O4}. (b) Formerly, designating an acid probably identical with {phthalic} acid. [1913 Webster +PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • 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 — /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 — θæ;lɪk adj. (Chemistry) of phthalein (chemical compound used in the production of dyes) …   English contemporary dictionary

  • phthalic — /ˈθælɪk/ (say thalik), /ˈfθælɪk/ (say fthalik), / eɪ / (say ay ) adjective 1. denoting or relating to any of three isomeric dicarboxylic acids, C6H4(COOH)2, derived from benzene, especially one which is prepared by oxidising naphthalene, and… …   Australian 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

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