Acid Brown 21 Usage And Synthesis

Preparation

3-Amino-4-hydroxy-N-methylbenzenesulfonamide diazo, and N-(7-hydroxynaphthalen-1-yl)acetamide coupling, and the other will be 3-Amino-4-hydroxybenzenesulfonamide diazo, and 1-(4-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling, and then turn it into 1:2 chromium complex.

Properties and Applications

red light brown. Brown powder. The strong sulfuric acid for red sauce, diluted solution for red brown; No change in strong hydrochloric acid, diluted into shallow brown solution, and the precipitation; In the nitric acid for brown, sediment can dilute; In the thick of sodium hydroxide solution no change after dilute for brown. Water solution is brown. General for loose hair, tops and article polyamide, less used alone. Also used PVA fabric and dimension / cotton, wool / rayon blended fabric dyeing and printing, but also for leather dyeing.

Acid Brown 21(61724-04-7)Related Product Information

• Cupric acetylacetonate
• Tris(2,4-pentanedionato)chroMiuM(III)
• N-BUTYLISOCYANIDE
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III)
• COBALT(II) ACETYLACETONATE
• 2,4-PENTANEDIONE, SILVER DERIVATIVE
• DICHLORO(ETHYLENEDIAMINE)PLATINUM(II)
• METHYL ISOCYANOACETATE
• Ethyl isocyanoacetate
• Benzyl isocyanide
• SALCOMINE
• 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE
• TERT-BUTYL ISOCYANIDE
• PHENYLSELENOL
• Ferric acetylacetonate
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III)
• Aluminum acetylacetonate
• Tosylmethyl isocyanide