Direct Yellow 24 Chemical Properties

EPA Substance Registry System

C.I. Direct Yellow 24 (6486-29-9)

Direct Yellow 24 Usage And Synthesis

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, respectively with the 4-Aminobenzenesulfonic acid and 2-Hydroxybenzoic acid coupling.

Properties and Applications

dark red light yellow. Light yellow evenly powder. Soluble in water and ethanol for dark yellow, slightly soluble in acetone. The strong sulfuric acid for wine, diluted for yellow, and the emergence of yellow brown precipitation; In the dark of nitric acid for red yellow light. The dye solution to join strong hydrochloric acid for dark brown; Add thick sodium hydroxide solution for dark orange. Dye cellulose fiber, 75 ~ 80 ℃ affinity when the strongest, discharge performance in general. Dyeing cotton or viscose for red light yellow. Mainly used in viscose fabric, cotton knitted content, flannelette, blankets, viscose/nylon and viscose/silk blended fabric dyeing, not directly printing. Can also be used for paper shelves and leather color.

Direct Yellow 24(6486-29-9)Related Product Information

• Direct Yellow 19
• Direct Yellow 20
• Benzenesulfonic acid, 3,5-bis[(2,4-diamino-5-nitrophenyl)azo]-4-methyl-, monosodium salt
• Direct Yellow 176
• C.I. Direct Yellow 21
• DIRECT YELLOW 2
• Direct Yellow 173
• sodium 6-methyl-2'-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl][2,6'-bibenzothiazole]-7-sulphonate
• 6-Benzothiazolecarboxylic acid, 2-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]-7-sulfo-, disodium salt