Direct Black 17
Detailed information about the product’s features, specifications, and applications.
Product Categorie
Product Tags
Direct Black 17
C.I.Direct Black 17
C.I.27700
CAS:2945-96-2
Synonymous names:Benzo Black DS (DYS);Diazamine Black D (CLAR);Direct Black D (CFT,NIEC);Direct Grey D (BC,HEB,STIE,NJC);Dycosdirect Grey D (SHC);Japanol Fast Black D (NSK)
More About This Dye
Description
C.I.Direct Black 17
C.I.27700
CAS:2945-96-2
Synonymous names:Benzo Black DS (DYS);Diazamine Black D (CLAR);Direct Black D (CFT,NIEC);Direct Grey D (BC,HEB,STIE,NJC);Dycosdirect Grey D (SHC);Japanol Fast Black D (NSK)
Physicochemical Properties: Black powder. Soluble in water (purplish-black), with solubility of 20 g/L (80°C), and ethanol (grayish-purple). In concentrated sulfuric acid, it appears as deep bluish-green, turning orange-brown upon dilution. Forms deep brown with concentrated hydrochloric acid and grayish-purple with concentrated sodium hydroxide. Sensitive to salt.
Applications: Dyes cotton/viscose bluish-gray to greenish-black. Post-treatment with fixatives improves fastness. Suitable for discharge printing and dyeing silk, vinylon, and nylon.
