Rosaniline - definizione. Che cos'è Rosaniline
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Cosa (chi) è Rosaniline - definizione

MAGENTA DYE, MIXTURE OF CHEMICALS
Fuchsin; Rosaniline; Basic fuchsin; Rosaniline dyes; C20H19N3; Basic fuchsine
  • Basic fuchsine pieces. The two magenta stains on the paper were made by placing one drop of [[ethanol]]-water [[azeotrope]], ''centre'', and water, ''right'', on the streaks remaining on the paper after the 'crystals' were removed. The 'crystals' were then replaced and the photograph taken.

rosaniline         
[r?(?)'zan?li:n, -l?n, -l??n]
¦ noun Chemistry a reddish-brown synthetic compound from which fuchsin and some other dyes are made.
Origin
C19: from rose1 + aniline.
Rosaniline         
·noun A complex nitrogenous base, C20H21N3O, obtained by oxidizing a mixture of aniline and toluidine, as a colorless crystalline substance which forms red salts. These salts are essential components of many of the socalled aniline dyes, as fuchsine, aniline red, ·etc. By extension, any one of the series of substances derived from, or related to, rosaniline proper.
Fuchsine         
·noun Aniline red; an artificial coal-tar dyestuff, of a metallic green color superficially, resembling cantharides, but when dissolved forming a brilliant dark red. It consists of a hydrochloride or acetate of rosaniline. ·see Rosaniline.

Wikipedia

Fuchsine

Fuchsine (sometimes spelled fuchsin) or rosaniline hydrochloride is a magenta dye with chemical formula C20H19N3·HCl. There are other similar chemical formulations of products sold as fuchsine, and several dozen other synonyms of this molecule.

It becomes magenta when dissolved in water; as a solid, it forms dark green crystals. As well as dying textiles, fuchsine is used to stain bacteria and sometimes as a disinfectant. In the literature of biological stains the name of this dye is frequently misspelled, with omission of the terminal -e, which indicates an amine. American and English dictionaries (Webster's, Oxford, Chambers, etc.) give the correct spelling, which is also used in the literature of industrial dyeing. It is well established that production of fuchsine results in development of bladder cancers by production workers. Production of magenta is listed as a circumstance known to result in cancer.