Sulfur red 2 (C.I. 53260)

will the 4-Chloro-2-(2,4-dinitrophenylamino)phenol?in 45 ~ 70 ℃ in the 90 minutes added to sodium polysulfide, and then heated to boiling point (104 ℃), in the return of boiling 24 hours

dark purplish red. Deep red powder. In the sodium sulfide solution for deep blue light green; In concentrated sulfuric acid for brown light green, dilution after purple black precipitation. Used for cotton, hemp, viscose fabric such as dyeing.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
						Moderate	Severe
ISO	4	4	3			3-4	2-3