Sulphur Blue 7
Name:C.I.Sulphur Blue 7,C.I.53440
Molecular Structure:
C.I.Sulphur Blue 7,C.I.53440,CAS 1327-57-7,508 Sulphur Blue BR,Sulphur Blue 2BN,Sulphur Blue BN,Sulphur Blue BRN,Sulphur Blue RN
CAS Registry Number:1327-57-7
Manufacturing Methods : 4-(4-Amino-3-methylphenylamino)phenol with Sodium polysulfide solution in return 106 ~ 112 ℃ heating 50 hours, then 70 ~ 80 ℃ blow air make precipitation. This indophenol is by o-Toluidine and 4-Nitrosophenol in sulfuric acid, and then the condensation with Sodium polysulfide and reduction. Sodium polysulfide increase in the proportion of sulfur content and high temperature vulcanization, color is red and more bright-coloured dye.
Properties and Applications: red light blue to blue light purple. Royal purple powder. Insoluble in water. In the Sodium sulfide solution solubility is good, for green grey; In concentrated sulfuric acid for blue purple, dilution of dark after precipitation. Dyeing content in alkaline insurance powder for the pale yellow light olive, oxidation, to restore the original colour and lustre. In sodium hypochlorite solution all faded. Mainly used for cotton, hemp, viscose fiber and vinylon/cotton blended fabric dyeing. Also used in cotton direct printing and leather, paper dyeing.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 4-5 | 4-5 | 3-4(Alkali) | 4-5 | 4 | 3 |
| AATCC | 5 | 5 | 5-6 | 4 | 4-5 | ||
List of Suppliers:
508 Sulphur Blue BR,Sulphur Blue 2BN,Sulphur Blue BN,Sulphur Blue BRN,Sulphur Blue RN
Bengbu Yongyan Dyes & Chemicals Co. Ltd
AkasulfurNavy 3R(Aakash Chemicals & Dyestuffs Inc)
Asashio Blue 3B( Kaseihin Kogyo Kyokai )
Asashio Blue BB ( Kaseihin Kogyo Kyokai )
Asashio Blue RC ( Kaseihin Kogyo Kyokai )
Asashio Blue TFB( Kaseihin Kogyo Kyokai )
Atul Sulphur Navy Blue ( Atul Limited )
Blue BRN(Hangzhou Dikai Chemical Co Ltd)
Consulfr Blue L (Concord Commerce Company)
Dycosulphur Blue BN (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Dycosulphuf Blue BRN (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Hydrosol Blue B ( Standard Dyes )
Kayaku Sulphur Blue BK (Nippon Kayak u Co Ltd)
Kayaku Sulphur Blue FBB(Nippon Kayak u Co Ltd)
Kayaku Sulphur Blue FNB (Nippon Kayak u Co Ltd)
Kayaku Sulphur Blue RC(Nippon Kayak u Co Ltd)
Kayaku Sulphur Blue TFB(Nippon Kayak u Co Ltd)
Mitsui Sulphur Blue 3BN( Mitsui Toatsu Chemicals Ltd )
Mitsui Sulphur Blue 4R( Mitsui Toatsu Chemicals Ltd )
Mitsui Sulphur Blue BC( Mitsui Toatsu Chemicals Ltd )
Mitsui Sulphur Blue FB( Mitsui Toatsu Chemicals Ltd )
Mitsui Suiphur Blue RC ( Mitsui Toatsu Chemicals Ltd )
Mitsui Sulphur Blue TFB ( Mitsui Toatsu Chemicals Ltd )
Patcosul Navy 3RX New Liq.( C.H. Patrick Co. Inc. )
Patcosul Navy XGIF Liq.( C.H. Patrick Co. Inc. )
Sulfur Blue BN (Brighten Colorchem BV)
Sulfbr Blue BRK (Brighten Colorchem BV)
Sulphotl Navy Blue EGE ( Enia Industries Quimicas S.A. )
Sulphur Blue 2BN(Sinochem Jiangsu I/E Corp.)
Sulphitf Blue 2BN(Sinochem Liaoning Import & Export Corporation)
Sulphur Blue 2RN(Sinochem Jiangsu I/E Corp.)
Sulphur Blue 2RN(Sinochem Liaoning Import & Export Corporation)
Sulphur Blue B(Sinochem Tianjin Imp Exp Corp)
Sulphur Blue B (Sinochem Ningbo Imp & Exp Corp)
Sulphur Blue BN(Sinochem Tianjin Imp Exp Corp)
Sulphur Blue BN (Sinochem Ningbo Imp & Exp Corp)
Sulphur Blue BN (Sinochem Jiangsu I/E Corp.)
Sulphur Blue B N (Chemische Fabriek Triade BV)
Sulphur Blue BN(Sinochem Liaoning Import & Export Corporation)
Sulphur Blue BNC (Sinochem Tianjin Imp Exp Corp)
Sulphur Blue BNC (Sinochem Ningbo Imp & Exp Corp)
Sulphur Blue BR(Sinochem Tianjin Imp Exp Corp)
Sulphur Blue BR (Sinochem Ningbo Imp & Exp Corp)
Sulphur Blue BR 508(Sinochem Tianjin Imp Exp Corp)
Sulphur Blue BRN(Sinochem Hebei Imp & Exp Corp)
Sulphur Blue BRN (Sinochem Ningbo Imp & Exp Corp)
Sulphur Blue BRN (Nanjing Chemicals Import and Export Corp)
Sulphur Blue BRN (Sinochem Jiangsu I/E Corp.)
Sulphur Blue BRN (Sinochem Liaoning Import & Export Corporation)
Sulphur Blue BRN 507 (Sinochem Tianjin Imp Exp Corp)
Sulphur Blue RN(Sinochem Jiangsu I/E Corp.)
Sulphur Blue RN(Sinochem Liaoning Import & Export Corporation)