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
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)