Sulphur Blue 7 CAS #1327-57-7
Sulphur Blue 7 CAS #1327-57-7 - 图片 2
Sulphur Blue 7 CAS #1327-57-7 - 图片 3
Sulphur Blue 7 CAS #1327-57-7 - 图片 4

Sulphur Blue 7 CAS #1327-57-7

1. Properties and characteristics
Color performance: It shows a blue tone and the color is brighter.
Solubility: It has poor solubility in water, but it can be dissolved and dyed in alkaline solution.
Stability: It has good light resistance and washability, but it is sensitive to oxidants and reducing agents.
2. Application areas
Textile printing and dyeing: It is mainly used for dyeing natural fibers such as cotton and linen, which can give the fabric a dark blue color.
Leather dyeing: It also has certain applications in the leather industry, providing a blue color for leather.

Category Tag

Sulphur Blue 7 CAS #1327-57-7

Sulphur Blue 7 Basic information
Product Name: Sulphur Blue 7
Synonyms: Sulphur Blue Z;Acco Sulfur Blue 2R-CF;Acco Sulfur Blue 4R-CF;Acco Sulfur Blue 6R-CF;Acco Sulfur Blue B-CF;Acco Sulfur Blue GLP-CF;Acco Sulfur Blue GLR-CF;Acco Sulfur Blue R-CF
CAS: 1327-57-7
MF: C13H14N2O
MW: 0
EINECS: 215-483-5
Product Categories: UVCBs-organic-metal salts
Mol File: Mol File
Sulphur Blue 7 Chemical Properties
EPA Substance Registry System C.I. Sulphur Blue 7 (1327-57-7)
Safety Information
Hazardous Substances Data 1327-57-7(Hazardous Substances Data)
MSDS Information
Sulphur Blue 7 Usage And Synthesis
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

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