Acid Yellow 40:1 Usage And Synthesis

Preparation

4-Aminophenol diazo, and 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid?coupling, and then and 4-Methylbenzene-1-sulfonyl chloride?reaction, make phenol hydroxyl esterification.

Properties and Applications

yellow. Pale yellow powder. Soluble in water, but soluble in ethylene glycol ether, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid dyes in yellow; In nitric acid in yellow. Its water solution yellow, add hydrochloric acid sodium hydroxide solution or no change. Mainly used for wool, silk and polyamide fiber dyeing, also used in medicine, cosmetics and leather dyeing.

Acid Yellow 40:1()Related Product Information

• Acid Yellow 33
• Acid Yellow 42
• ACID YELLOW 38
• Acid Yellow 44
• sodium 5-chloro-4-[4-[(2-chlorophenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]toluene-3-sulphonate
• ACID YELLOW 34
• sodium p-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzenesulphonate
• METANIL YELLOW
• ACID YELLOW 40