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rosaniline

American  
[roh-zan-l-in, -ahyn] / roʊˈzæn l ɪn, -ˌaɪn /

noun

Chemistry.
  1. a red dye, C 2 0 H 2 0 N 3 Cl, derived from aniline and orthotoluidine, a constituent of fuchsin.

  2. the base, C 2 0 H 2 1 N 3 O, which, with hydrochloric acid, forms this dye.


rosaniline British  
/ -lɪn, rəʊˈzænɪˌliːn /

noun

  1. a reddish-brown crystalline insoluble derivative of aniline used, in the form of its soluble hydrochloride, as a red dye See also fuchsin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of rosaniline

First recorded in 1860–65; rose 1 + aniline

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.

From Coal and What We Get from It by Meldola, Raphael

The explanation is that the base rosaniline has united with the fibre, which here plays the part of an acid, to form a coloured salt.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various

It consists of a hydrochloride or acetate of rosaniline.

From The Gutenberg Webster's Unabridged Dictionary Section F, G and H by Project Gutenberg

Later researches have shown that by heating rosolic acid with ammonia it is converted into rosaniline.

From Coal and What We Get from It by Meldola, Raphael

Aniline red, magenta, azaleine, rubine, solferino, fuchsine, chryaline, roseine, erythrobenzine, and others, are colouring matters in this group which are salts of rosaniline, and which are all recognised in commerce.

From The Story of a Piece of Coal What It Is, Whence It Comes, and Whither It Goes by Martin, Edward A.