rosaniline

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“
It contains all the elements, carbon, hydrogen, oxygen, nitrogen and sulphur, found in wool If wool is dyed in a dilute solution of Magenta (hydrochloride of rosaniline), the whole of the base (rosaniline) is taken up, and the whole of the acid (HCl) left in the bath, not, however, in the free state, but probably as NH_{4}Cl, the ammonia being derived from the wool itself.

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Definitions (5)

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  1. noun A brownish-red crystalline organic compound, C20H21N3O, derived from aniline and used in the manufacture of dyes and in Schiff's reagent.

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Examples (12)

  • Among these products may be mentioned aniline, rosaniline, napthaline, chinoline, carbolic acid, picric acid, &c.;, with their derivatives Of the fifty-one compounds furnished by the distillation of coal, perhaps the most popularly associated with coal-tar colours is aniline, to which we will therefore confine ourselves. —  Field's Chromatography or Treatise on Colours and Pigments as Used by Artists
  • It contains all the elements, carbon, hydrogen, oxygen, nitrogen and sulphur, found in wool If wool is dyed in a dilute solution of Magenta (hydrochloride of rosaniline), the whole of the base (rosaniline) is taken up, and the whole of the acid (HCl) left in the bath, not, however, in the free state, but probably as NH_{4}Cl, the ammonia being derived from the wool itself. —  The Dyeing of Woollen Fabrics
  • These dye-stuffs are derived from a number of so-called colour bases, such as Rosaniline, Pararosaniline, Methylrosaniline, Phenyl-rosaniline, and Auramine base. —  The Dyeing of Woollen Fabrics
  • The tannate of rosaniline (colour principle of Magenta) is a tolerably insoluble lake, which can be precipitated by Magenta from a solution of tannate of soda, the Magenta being capable of displacing the soda. —  The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association
  • Methylrosaniline, Phenyl-rosaniline, and Auramine base. —  The Dyeing of Woollen Fabrics
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/rəˈzænɪlɪn/
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