Rosaniline hydrochloride = fuchsine

Reagent Prepare 50 mL of a 0.1 percent aqueous solution of p-rosaniline hydrochloride (fuchsin). Add 2 mL of a saturated aqueous solution of sodium bisulfite. After 1 h add 1 mL of concentrated hydrochloric acid. 

C) Preparation of Rosaniline Hydrochloride (Fuchsine). Place an eight-inch test tube attached to a wire on a horn balance and... 

Fubridazole. See Fuberidazole p-Fuchsin. See p-Rosaniline hydrochloride Fuchsin acid. See Acid fuchsin Fuchsine. See Basic violet 14 Fuchsine acid. See Acid fuchsin Fuchsine SP. See p-Rosaniline hydrochloride Fucogel 1000, a-L-Fucose-1,3-a-D-galactose-1,3-a-D-galacturonic acid homopolymer. See Biosaccharide qum-1 Fucus extract. See Bladderwrack (Fucus vesiculosus) extract Fucus serratus extract CAS 94167-02-9 EINECS/ELINCS 303-400-6 Synonyms Algae... 

O. 2g of fuchsin(rosaniline hydrochloride) in hoc distd w( 120ml), cooling and addiqg this soln... 

The migration of water in teeth was tried to be visualized using fuchsine dye as a colorant ([103], rosaniline hydrochloride C19H17N3 HCI). Fresh human molars were immersed into a slightly acidic aqueous fuchsine solution. As was expected, the water penetrated fast via the nerve canal into the pulpa and especially the roots were dyed red from fuchsine migrating inwards as well from the sample surface as from the nerve canal. After several days, it could be observed that water had migrated into the gap between the enamel and the dentine (edj). Generally the intensity of the colour increased with time, and the dentine took up the colour more readily than the enamel. 

Sduff s fuchsin aldehyde reagent. Dissolve 1 g of fuchsin (p-rosaniline hydrochloride) in 200 ml of water, with gentle warming. Cool and saturate with sulfur dioxide. Allow to stand for several hours. Add 1 g of decolorizing carbon, shake, filter, and dilute with water to 1 liter. 

The decolorized fuchsin solution is a 0.1% acidic solution of basic fuchsin, which is a mixture of rosaniline hydrochloride (Figure 3.13.1) and para-rosaniline hydrochloride (Figure 3.13.2). 

See Acid green 5 See Acid green 9 See Acid green 22 See p-Rosaniline hydrochloride See Basic violet 14 See Basic violet 1 See Basic violet 3 See Basic blue 7 See Basic violet 4 See Acid violet 49 See Acid blue 15 See Acid violet 17 See Acid fuchsin See Acid blue 104 1. See Pigment blue 61 See Acid blue 93 See Acid green 16 See Basic blue 26 See Phenyl-a-naphthylamine See Acid green 50 See Acid blue 213 See Acid red 52 See Basic red 1... 

Acid fuchsin Acid orange 7 Acid yellow 36 Bromocresol purple Bromophenol blue o-Cresolphthalein Cresol red D C Orange No. 4 Direct red 2 Phenolphthalein Phenol red p-Rosaniline hydrochloride Thymolphthalein pH modifier, oil well applies. 

Schiff s reagent is an aqueous solution formed by combining p-rosaniline hydrochloride (basic fuchsin), sodium bisulfite, and concentrated hydrochloric acid (Eq. 25.10). The reagent reacts with aldehydes to produce an imine, also called a Schiff base, that is magenta or purple in color (Eq. 25.11). The mechanism for forming the addition product presumably involves nucleophilic attack of sulfur on the aldehydic carbonyl group. 

The Fuchsin Aldehyde. Te.sL —Ald( hyd( s restort color to Fuchsin Aldehyde Reagent wIktcms lo tones do not. riu reagent is a dilute solution of rosaniline or fuchsin hydrochloride ( inag( tit,a) that has been decolorized by sulfur dioxide. ... 

Magenta (Fuchsine) Rosaniline hydrochloride 1856 1858 Cl 42510 Cl Basic Violet 14 AW von Hofmann (1818-1892) J. Natanson, Francois Emmanuel Verguin Impure aniline with stannic chloride... 

Calcozine Magenta N Fuchsine DR 001 Fuchsine SP Fuchsine SPC Orient Para Magenta Base Parafuchsin Parafuchsine Pararosaniline Pararosaniline chloride Pararosaniline hydrochloride / -Fuchsin / -Fuchsine p-Rosaniline hydrochloride... 

An aqueous solution of fuchsin (/7-rosaniline hydrochloride) decolorized with sodium hydrogen sulfite or with sodium sulfite becomes red-violet to blue if aldehydes are added to it. The reappearance of this color is not caused by simple oxidation to fuchsin, but represents a specific reaction of the aldehydic group —CHO. However, unsaturated aldehydes and certain aromatic aldehydes (vanillin, p-aminobenzaldehyde, p-dimethylaminobenz-aldehyde) and glyoxal do not react. According to more recent views (15), both amino groups of the fuchsinleukosulfonic acid (VI) react with the... 

Schiff s reagent is a dilute solution of fuchsin hydrochloride (p-rosaniline) that has been decolourised by sulphur dioxide. This decolourisation is the result of a... 

Rosaniline is the color-base of magenta. The hydrochloride of the base is generally called magenta or fuchsine, although the acetate is also used under these names. Rosaniline is manufactured by ojddizing a mixture of aniline, o-toluidine, and p-toluidine, with arsenic acid, mercuric nitrate, or nitrobenzene. The reaction is analogous to that which takes place in the preparation of pararosaniline, of which rosaniline is a methyl derivative with the structure indicated by the following formula —... 

Fuchsin fyuk-son, - Sen [F fuchsine, prob. fr. NL Fuchsia fr. its color] (1865) n. Synthetic rosaniline dyestuff, a mixture of rosaniline and pararosaniline hydrochlorides. Dark green powder of greenish crystals with a bronze luster faint odor. Soluble in water and alcohol. Used in textile and leather industries as a red dye and as a pharmaceutical. Vigo TL (1994) Textile processing, dyeing, finishing, and performance. Elsevier Science, New York. 

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