Dynasul dyes are sulphur dyes for cotton with good wash fastness
Sulphur Blue 7
1. Molecular formula: C13H14N2O | ||||||||||||||||||||||||||
2. Molecular weight: N/A | ||||||||||||||||||||||||||
3. Structure formula: | ||||||||||||||||||||||||||
N/A | ||||||||||||||||||||||||||
4. CAS NO.:1327-57-7 | ||||||||||||||||||||||||||
5. Appearance: Blue powder. | ||||||||||||||||||||||||||
6. Specification: Strength 100% | ||||||||||||||||||||||||||
7. Usage: Mainly used in dyeing of leather. | ||||||||||||||||||||||||||
8. Packing, storage and transportation: Packed with 25KGcarton, allows to be tansported by the general means. 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.
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