1327-57-7

Basic information

• Product Name: Sulphur Blue 7
• Synonyms: Phenol, 4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx));Sulfur blue 7 (C.I. 53440);Asathio Blue 3B;Asathio Blue BB;Asathio Blue BS;Asathio Blue D-3B;Asathio Blue DG;Asathio Blue RC
• CAS NO: 1327-57-7
• Molecular Formula: C13H14N2O
• Molecular Weight: 214.26306
• EINECS: 215-483-5
• Product Categories: UVCBs-organic-metal salts
• Mol File: 1327-57-7.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Sulphur Blue 7(CAS DataBase Reference)
• NIST Chemistry Reference: Sulphur Blue 7(1327-57-7)
• EPA Substance Registry System: Sulphur Blue 7(1327-57-7)

Safety Data

• Hazardous Substances Data: 1327-57-7(Hazardous Substances Data)

Usage

Preparation

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

Standard

Acid Resistance

Moderate

Severe

ISO

4

AATCC

5