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单词 flavanthrone
释义

flavanthronen.

/fleɪˈvanθrəʊn//ˈfleɪvənθrəʊn/
Forms: Also flavanthrene.
Etymology: flavanthrene < German flavanthren , < flav- (in flavo- comb. form) + anthr- (in anthra- comb. form) + -ene comb. form; flavanthrone < flavanthrene after anthrone n. (see -one suffix).
Chemistry.
An anthraquinone derivative, C28H12N2O2, isolated as yellowish brown needles and used as a yellow vat dye.
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the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring yellow
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flemingin1898
flavanthrone1902
1902 in Notices Proc. Royal Inst. Great Brit. (1906) 17 107 Flavanthrene, a yellow dye-stuff, which has not yet left the laboratory of its inventor, has a blue leuco-compound.
1902 Jrnl. Soc. Dyers & Colourists 18 188/1 The new colouring matter which was referred to by Prof. O. N. Witt in his recent lecture at the Royal Institution as Flavanthrene, does not appear to have come into the market yet.
1920 F. A. Mason tr. G. von Georgievics Text-bk. Dye Chem. (ed. 2) 452 Flavanthrone..is sold as Indanthrene Yellow G (B.A.S.F.), Chloranthrene Yellow (B.D.L.), and Caledon Yellow G (Sol.).
1952 K. Venkataraman Chem. Synthetic Dyes II. xxxii. 992 Flavanthrone.., which dyes orange-yellow shades from the blue vat, continues to be an important dye (partly because it is a nontenderer and has good light fastness).
1961 S. R. Cockett & K. A. Hilton Dyeing of Cellulosic Fibres i. 13 In 1901, the first anthraquinone vat dye, Indanthrone (Indanthrene Blue B), was discovered by Bohn... This was followed in the same year, and from the same chemist, by Flavanthrone (Indanthrene Yellow G) and many other variations.
This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).
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n.1902
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