Acridine Yellow can be used for this purpose, together with 9, 10-bis ( phenylethynyl ) anthracene, and a scale of different azo dyes, aromatic hydrocarbons, and other dyes.
42.
The reactive strips detect nitrite by using the aromatic amine ( para-arsanilic acid or sulphanilamide ) in order to form a diazonium salt that in turn reacts with tetrahydrobenzoquinoline to produce a pink azo dye.
43.
A wide range of dyes and pigments can be used in tattoos, from inorganic materials like titanium dioxide and iron oxides to carbon black, azo dyes, and acridine, quinoline, phthalocyanine and cosmetic tattooing.
44.
The bilirubin combines with a diazonium salt ( 2, 4-dichloroaniline or 2, 6-dichlorobenzene-diazonium-tetrafluoroborate ) in an acid medium to produce an azo dye with colouration that varies from pink to violet:
45.
Alcian yellow is an azo dye having neither a phthalocyanine ring nor any of the colors of the Kingfisher, but in common with Alcian blue, has hydrolyzable charged thiouronium side-chains and similar stability of the final stained product.
46.
Ponceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons; it is stable to light, heat, and acid but fades in the presence of ascorbic acid.
47.
It is used in the synthesis of azo dyes such as C . I . Acid Yellow 19 and C . I . Pigment Red 49 . It is prepared via the Bucherer reaction of 2-hydroxynaphthalene-1-sulfonic acid with ammonia and ammonium sulfite.
48.
In U . S . P . # 5, 096, 801 Koya " et al . ", of Fuji Photo Film company, list some 150-200 chemical structures, mainly azo dyes and pyrazolone-diazenyl, but fail to provide chemical names, CAS Registry numbers, or Colour Index numbers.
49.
Titanium dioxide in conjunction with ultraviolet light can be utilized for the decolorization and detoxification of diluted colored water waste such as Alizarin, azo dyes, methyl red, methylene blue, etc . Reduced graphene oxide-TiO2 can act as photocatalyst for the degradation of methyl orange, azo-dye, and pharmaceutical water waste.
50.
"' Sunset Yellow FCF "'( also known as "'Orange Yellow S "', or "'C . I . 15985 "') is a petroleum-derived orange azo dye with a pH dependent maximum absorption at about 480 nm at pH 1 and 443 nm at pH 13 with a shoulder at 500 nm.
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