Factory Direct Sell Reactive Blue 74 for Textile Use

• CAS No.: 12677-16-6
• Formula: C28h23cln6na2o9s2
• Colour: Blue
• Appearance: Powder
• Usage: Leather, Ink
• Application Material: Leather
• Model NO.: 12677-16-6
• Transport Package: Bag
• Trademark: emperor
• Origin: China
• HS Code: 3204160000

Product Description

Factory direct sell Reactive Dyes Reactive Blue 74 For textile use 

C.I.Reactive Blue 74,C.I.621521,CAS 12677-16-6,733.08,C28H23ClN6Na2O9S2, Reactive brilliant Blue K-4R,Reactive Blue K-3R,Reactive brilliant Blue K-3R

Molecular Formula:C₂₈H₂₃ClN₆Na₂O₉S₂

Molecular Weight: 733.08

CAS Registry Number:12677-16-6

Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 3,5-Diamino-2,4,6-trimethylbenzenesulfonic acid condensation,  and 2,4,6-Trichloro-1,3,5-triazine condensation, then ethoxylated.

Properties and Applications: bright blue. Dark blue powder, the strong sulfuric acid for blue-black, diluted into dark blue; In nitric acid in by the blue to brown, diluted into a tan. Water solution is red light blue, with 1 Moore sodium hydroxide is still bright blue, continue to add insurance powder and warm, turn golden brown; Add a boric acid sodium to buff. 20 ºC in the solubility of 100 g/L; 50 ºC when solubility of 140 g/L. Colored light blue, in dye bath of iron ion in slightly turned dark; In light of copper (basically unchanged. The reactive dyes medium, promote sex differences, neutral and alkaline white are poor (1 ~ 2 grade). Suitable for cotton or viscose disseminated, roll the dye, Padding and continuous dyeing dyeing and direct, the dye printing.

Standard(cellulose)	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	6-7	4-5				4-5