High Quality Reactive Dyes Reactive Blue 4 for Textile Use

• CAS No.: 70865-29-1
• Colour: Blue
• Appearance: Powder
• Usage: Leather, Ink
• Application Material: Leather
• Transport Package: Bag
• Model NO.: 13324-20-4
• Trademark: emperor
• Origin: China
• HS Code: 3204160000

Product Description

High Quality Reactive Dyes Reactive Blue 4 For textile use 

C.I.Reactive Blue 4,C.I.61205,CAS 13324-20-4/4499-01-8,C23H12Cl2N6Na2O8S2,Reactive brilliant Blue X-RL,Reactive brilliant Blue X-ARL,Reactive brilliant Blue X-BR

Molecular Formula:C₂₃H₁₂Cl₂N₆Na₂O₈S₂

Molecular Weight: 681.39

CAS Registry Number:13324-20-4/4499-01-8

Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2,4-Diaminobenzenesulfonic acid condensation, and  2,4,6-Trichloro-1,3,5-triazine condensation and salting-out.

Properties and Applications: bright blue. Dark blue powder. The strong sulfuric acid for red brown, diluted into blue; In nitric acid to orange, no change after diluted. The dye water solution is blue, with 1 Moore sodium hydroxide solution is still blue, continue to join insurance powder and warm, turn dark red, plus a boric acid to red,. Mainly used for cotton, nylon, wool, silk and viscose yarn and fabric as the dyeing and printing, printing and dyeing directly. Structure and C.I.Reactive Blue 1 the same.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	6	3-4	4-5	4 (shallow, green)	5	4(95ºC)	4-5