rosaniline
Americannoun
-
a red dye, C 2 0 H 2 0 N 3 Cl, derived from aniline and orthotoluidine, a constituent of fuchsin.
-
the base, C 2 0 H 2 1 N 3 O, which, with hydrochloric acid, forms this dye.
noun
Etymology
Origin of rosaniline
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.
Members of the rosaniline group are all similarly fugitive, while those of the alizarin group possess generally the quality of fastness.
From Scientific American Supplement, No. 810, July 11, 1891 by Various
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
Among these products may be mentioned aniline, rosaniline, napthaline, chinoline, carbolic acid, picric acid, &c., with their derivatives.
From Field's Chromatography or Treatise on Colours and Pigments as Used by Artists by Salter, Thomas
Magenta is the salt of a base now known as rosaniline, and it belongs therefore to the class of basic colouring-matters.
From Coal and What We Get from It by Meldola, Raphael
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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.