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Что (кто) такое fuchsin$30270$ - определение
CHEMICAL COMPOUND
New fuchsin
![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.](https://commons.wikimedia.org/wiki/Special:FilePath/Basic Fuchsine Crystals.JPG?width=200 "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
MAGENTA DYE, MIXTURE OF CHEMICALS
Fuchsin; Rosaniline; Basic fuchsin; Rosaniline dyes; C20H19N3; Basic fuchsine
·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
MAGENTA DYE, MIXTURE OF CHEMICALS
Fuchsin; Rosaniline; Basic fuchsin; Rosaniline dyes; C20H19N3; Basic 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.
Википедия
New fuchsine
New fuchsine is an organic compound with the formula [(H2N(CH3)C6H3)3C]Cl. It is a green-colored solid that is used as a dye of the triarylmethane class. It is one of the four components of basic fuchsine, and one of the two that are available as single dyes. The other is pararosaniline. It is prepared by condensation of ortho-toluidine with formaldehyde. This process initially gives the benzhydrol 4,4'-bis(dimethylamino)benzhydrol, which is further condensed to give the leuco (colorless) tertiary alcohol [(H2N(CH3)C6H3)3COH, which is oxidized in acid to give the dye.
