1934-24-3

red powder

Mordant red 19 is an azo dye commonly used for dyeing textiles.

3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazotization, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling.

brilliant red. Soluble in water for orange red, right amount soluble in ethanol for brown light orange, soluble in acetone and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid for yellow orange, dilution after yellow, there was a slight precipitate; In concentrated nitric acid for shallow olive brown solution. Dye aqueous solution to join 10% sodium hydroxide solution for yellow orange.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	3	6	4	4-5	4-5	4-5	5
AATCC	5	6	5		5

[1] Raggi MA, et al.Extractive analysis of aluminum traces in dialysis solutions. J Pharm Biomed Anal. 2000 Jan;21(6):1191-6.