Acid Yellow 61

Preparation

2-Amino-N-ethyl-N-phenylbenzenesulfonamide diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.

Flammability and Explosibility

Non flammable

Properties and Applications

yellow. Yellow powder. Soluble in water, in 90 ℃ water solubility of 35 g/L. The strong sulfuric acid dyes for old yellow, diluted the same colour and lustre, precipitation. Its water solution for green light yellow, add hydrochloric acid to tender yellow; Add sodium hydroxide to also to tender yellow, a little cloudy. This product levelness white, and better properties, copper, iron ion of more sensitive, dyeing should be pay attention to. This product used for wool, silk, polyamide fiber and its blended fabric dyeing, also can be used for wool and silk fabric printing, direct discharge printing. Can also be used in leather color.