Reactive Yellow 14

Definition

ChEBI: A organic sodium salt that is the disodium salt of an azo-substituted pyrazolinone sulfonic acid compound.

Preparation

2-(3-Amino-4-methoxyphenylsulfonyl)ethyl hydrogen sulfate diazo, and 3-Chloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)-5-methylbenzenesulfonic acidcoupling.

Properties and Applications

brilliant yellow. Yellow powder. The strong sulfuric acid for yellow, diluted still yellow color; In nitric acid for colourful yellow, diluted still for colourful yellow; Add in 1 Moore sodium hydroxide solution no change color, continue to join the amount of insurance powder and warm, very light to the yellow, add a boric acid sodium can’t restore the original colour and lustre.For cotton, rayon, silk, polyvinyl alcohol, wool and nylon dip, dyeing, pad dyeing and direct, anti-pollution and discharge printing.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	4-5			4-5	5	4	5