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Reactive Blue 74

Name:C.I.Reactive Blue 74,C.I.621521

Molecular Structure: anthraquinones

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

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 ℃ in the solubility of 100 g/L; 50 ℃ 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

List of Suppliers:

Reactive brilliant Blue K-4R,Reactive Blue K-3R,Reactive brilliant Blue K-3R

Taixing Jinji Dyestuff Co.,Ltd

Jiangsu Shenxin Dyestuffs & Chemicals Co.,LTD.(Wuxi Runxin Dyes Co., Ltd.)

Shanghai Yongqing industrial Co.Ltd.

Zhejiang Shunlong Chemical Co., ltd.

Brilliant Blue K-3R (Sinochem Jiangsu Wuxi Imp & Exp Corp)

Brilliant Blue K-3R(Sinochem Liaoning Import & Export Corporation)

Cibacron Pront Blue 3R ( Ciba Specialty Chemicals Inc )

Dycosactive Brilliant Blue K-3R (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Reactive Blue 74 150% (Hangzhou Dikai Chemical Co Ltd)

Reactive Blue K-3R(Nanjing Chemicals Import and Export Corp)

Reactive Brilliant Blue K-3R (Sinochem Ningbo Imp & Exp Corp)

Reactive Brilliant Blue K-3R (Brighten Colorchem BV)

Reactive Brilliant Blue K-3R (Fenchem Enterprises Ltd)

Reactive Brilliant Blue K-3RL (Sinochem Ningbo Imp & Exp Corp)

Youhaoreactive Brilliant Blue K-3R(Sinochem Tianjin Imp Exp Corp)


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