[thal-een, -ee-in, fthal-] /ˈθæl in, -i ɪn, ˈfθæl-/
any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived.
/ˈθeɪliːn; -lɪɪn; ˈθæl-; ˈfθæl-/
any of a class of organic compounds obtained by the reaction of phthalic anhydride with a phenol and used in dyes
phthalein phthal·ein or phthal·eine (thāl’ēn’, thāl’ē-ĭn, thā’lēn’, thā’lē-ĭn)
Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol, from which certain synthetic dyes are derived.
(thāl’ēn’, thā’lēn’, fthāl’-)
Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol. They are used to derive certain synthetic dyes.
[thal-ik, fthal-] /ˈθæl ɪk, ˈfθæl-/ adjective, Chemistry. 1. of or derived from . phthalic phthal·ic (thāl’ĭk, fthāl’-) adj.
noun 1. Chemistry. any of three isomeric acids having the formula C 8 H 6 O 4 , especially the ortho isomer (orthophthalic acid) a colorless, crystalline, slightly water-soluble solid used chiefly in the manufacture of dyes, medicine, and perfume. 2. . 3. . /ˈθælɪk; ˈfθæl-/ noun 1. a soluble colourless crystalline acid used in […]
noun, Chemistry. 1. a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers. noun 1. a white crystalline substance used mainly in producing dyestuffs. Formula: C6H4(CO)2O phthalic anhydride n. A white crystalline compound prepared by oxidizing naphthalene and used in the […]
[thal-in, fthal-] /ˈθæl ɪn, ˈfθæl-/ noun, Chemistry. 1. any of a group of compounds obtained by the reduction of the phthaleins.