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phthalocyanine
[ thal-uh-sahy-uh-neen, -nin, fthal- ]
noun
, Chemistry.
- Also called metal-free phthalocyanine. a blue-green pigment, C 3 2 H 1 8 N 8 , derived from phthalic anhydride.
- any of the group of blue or green pigments produced by the interaction of metal-free phthalocyanine and a metal, especially copper: used chiefly in the manufacture of enamels, printing inks, and automotive finishes.
phthalocyanine
/ ˌfθæl-; ˌθæləʊˈsaɪəˌniːn; ˌθeɪ- /
noun
- a cyclic blue-green organic pigment. Formula: (C 6 H 4 C 2 N) 4 N 4 H 4
- any of a class of compounds derived by coordination of this compound with a metal atom. They are blue or green pigments used in printing inks, plastics, and enamels
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Word History and Origins
Origin of phthalocyanine1
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Word History and Origins
Origin of phthalocyanine1
C20: from phthal- (see phthalein ) + cyanine
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