DIRECT YELLOW 29 Chemical Properties

EPA Substance Registry System

[2,6'-Bibenzothiazole]-7-sulfonic acid, 2',2'''-(azodi-4,1-phenylene)bis[6-methyl-, disodium salt (6537-66-2)

DIRECT YELLOW 29 Usage And Synthesis

Preparation

use sodium hypochlorite processing C.I. Direct Yellow 59 (C.I. 49000) solution.

Properties and Applications

red light yellow. Palm red powder. Soluble in water for golden brown, solubility of 30 g/L (60 ℃), 48 g/L (98 ℃), soluble in ethanol is shallow lemon yellow. The strong sulfuric acid for orange red brown, diluted into gold. The dye solution with strong hydrochloric acid into orange red brown; Add thick sodium hydroxide solution into a golden brown. In dyeing copper and iron ion colored light slight change. Good resistance to chlorine stability,On Rongalite and sodium sulfide reduction-resistant. Used for cotton and viscose fiber dyeing and can be directly printing and white, can and dispersal dyes with bath of high temperature on polyester/cotton blended fabric dyeing, used for leather and paper shading.

DIRECT YELLOW 29(6537-66-2)Related Product Information

• tetrasodium 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,5-disulphonate)
• tetrasodium 3,3'-[carbonylbis[imino(2-methyl-4,1-phenylene)azo-4,1-phenylenecarbonylimino]]bis[5-sulphonatosalicylate]
• Direct Yellow 30
• DIRECT YELLOW 28
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• 2-Methylthiazole
• PRIMULINE
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• 2-Methylbenzothiazole
• DIRECT YELLOW 29
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• DURAZOL YELLOW G,DURAZOL YELLOW G C.I. NO. 19555
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