Direct Red 17
Name:C.I.Direct Red 17,C.I.22150
Molecular Structure: Double azo class
C.I.Direct Red 17,C.I.22150,CAS 2769-07-5,697.65,C32H21N5Na2O7S2,Direct Bordeaux B,Direct Rubine A
Molecular Formula:C32H21N5Na2O7S2
Molecular Weight: 697.65
CAS Registry Number:2769-07-5
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid coupling, and then and 4-Aminonaphthalene-1-sulfonic acid matches.
Properties and Applications: blue-ray red. Soluble in water for wine red, and adequate soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted as a light red light blue.. The dye solution to join strong hydrochloric acid for blue precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 1-2 | 5 | 1-2 | 1-2 | 1-2 | ||
| AATCC | 1 | 3 | 1-2 | 1 | 1 | ||
List of Suppliers:
Apollo Direct Bordeaux B ( Taiheung Corp )
Atul Direct Rubine A( Atul Limited )