Direct Blue 167
Name:C.I.Direct Blue 167,C.I.24560
Molecular Structure: Double azo class
Molecular Formula:C51H36N6Na4O17S2
Molecular Weight: 1160.95
CAS Registry Number:
Manufacturing Methods : 2-[2-Amino-5-[4-amino-3-(carboxymethoxy)phenyl]-phenoxy]acetic acid double nitriding, first and 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid coupling, and then and 6-(2,4-Dimethoxyanilino)-1-naphthol-3-sulfonic acid coupling.
Properties and Applications: navy blue. Soluble in water as dark blue, slightly soluble in alcohol. In the strong sulfuric acid as dark blue, for purple diluted. The dye solution to join strong hydrochloric acid for dark, precipitation; Add thick dark for sodium hydroxide solution, precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
AATCC | 3-4 | 4 | 6-7 | 4 | 4-5 |
List of Suppliers:
Benzo Fast Copper Navy Blue BL ( IG Farbenindustrie AG )