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An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics. [1] Some acid dyes are used as food colorants, [2] [3] and some can also be used to stain organelles in the medical field. Acid dyes are anionic, soluble in water and are essentially applied from acidic bath.
Acid Blue AS Weak Acid Blue Acid Blue 25: 62055 anthraquinone: 6408-78-2: Acid fuchsin: Acid Magenta Acid Rubin Acid Violet 19 42685 triarylmethane: 3244-88-0: Acid orange 3 Acid orange 3 10385 nitro 6373-74-6: Acid orange 19: Acid Orange 19 14690 azo: 3058-98-8: Acid orange 20: Orange I Acid Orange 20 14600 azo 523-44-4: Acid Red 13: Fast red ...
Its chemical name is 1-(4-sulfo-1-napthylazo)-2-napthol-6,8-disulfonic acid, trisodium salt. Ponceau (17th century French for " poppy-coloured ") is the generic name for a family of azo dyes . 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 ...
Toggle the table of contents. ... Acid Orange 7, also known as 2-naphthol orange is an azo dye. It is used for dyeing wool. Preparation
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This range contains a mixture of 3 different dyes - direct, acid and disperse. Direct dyes are for cellulose based fabrics, acid dyes for wool and nylon and disperse for some plastics. None of these are reactive dyes and are less wash fast than the other ranges. It comes in 26 colours. [3]
Martius yellow is an organic compound that once was used to protect wool from moths. It is prepared by nitration of naphthol. [1]Martius yellow stains have been used to stain erythrocytes yellow so that they contrast well with red fibrin in trichrome staining methods such as Lendrum's Picro Mallory and Slidder's Martius, Scarlet and Blue (MSB).
Rit is an American brand of dye first sold in 1916. It is owned by Nakoma Products. [1] [2] [3] Rit is a commercial dye used for household purposes, including dyeing clothes and wood. It is sold in solid and powdered forms. The items being dyed are soaked with Rit in hot water. [4] Cloth dyed with Rit can be undyed with Rit Color Remover. [4]
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