Direct Red 61
Name:C.I.Direct Red 61,C.I.23040
Molecular Structure: Double azo class
Molecular Formula:C32H20Cl2N6Na2O6S2
Molecular Weight: 765.55
CAS Registry Number:6470-31-1
Manufacturing Methods : 4-Aminonaphthalene-1-sulfonic acid double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.
Properties and Applications: blue-ray red. Soluble in water for red to blue light red, soluble in ethanol for red orange, slightly soluble in acetone. The strong sulfuric acid for blue, shallow blue for diluted. The dye solution to join strong hydrochloric acid for red sauce, precipitation; Add thick sodium hydroxide solution for product red, precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 2 | 3-4 | 1 | 2 | 2 |
List of Suppliers:
ACDI Bordeaux 6B 200%(Aakash Chemicals & Dyestuffs Inc)
Dyrite Bordeaux 6BF 200% ( Rite Industries Inc. )
Fabramine Bordeaux 6BF 200%( Fabricolor Inc. )
Leadirect Bordeaux 6BA 100/200% ( Leadertech Colors Inc. )