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Updated: May 13, 2025
Several organic lakes can be used for coloured lacquers, that is to say, Indian yellow, thioflavin, and auramine lake for a yellow lacquer; fuchsine, rhodamine, and chloranisidin lake for a red; diamond sky blue, and patent nileblue lake for a blue; acid green, diamond green, brilliant milling green, vert-methyl lake, etc., for a green; methyl violet, acid violet, and magenta lake for a violet; phloxine lake for a pink.
I paused here, and Maitland went on somewhat dubiously: "Yes, it's not hard to locate such a woman. She makes her presence as clearly felt among a million of her sex as does a grain of fuchsine in a hogshead of water. If, with a few ounces of this, Tyndall could colour Lake Geneva, so with Gwen Darrow one might, such is the power of the ideal, change the ethical status of a continent."
The great commercial value of aniline is due to the readiness with which it yields, directly or indirectly, valuable dyestuffs. The discovery of mauve in 1858 by Sir W.H. Perkin was the first of a series of dyestuffs which are now to be numbered by hundreds. Reference should be made to the articles DYEING, FUCHSINE, SAFRANINE, INDULINES, for more details on this subject.
To take the rosanilines as an instance of the rest. 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.
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