Direct Blue 126
Name:C.I.Direct Blue 126,C.I.34010
Molecular Structure: trisazo class
C.I.Direct Blue 126,C.I.34010,CAS 8006-05-1,905.82,C38H26N7Na3O10S3,Diazo Blue PG
Molecular Formula:C38H26N7Na3O10S3
Molecular Weight: 905.82
CAS Registry Number:8006-05-1
Manufacturing Methods : 3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, product to diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 2-Amino-4-methylanisole coupling.
Properties and Applications: red light navy blue. Soluble in water for purple, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in the green light for black, dark blue light after diluted precipitation; In nitric acid partly dissolved, for red light gray. The dye solution to join strong hydrochloric acid blue precipitation; Add thick sodium hydroxide solution for red lights.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4-5 | 5 | 5 | 4 | 4-5 | ||
| AATCC | 4 | 4 | 5 | 4 | 4 | ||
List of Suppliers:
ACDI Diazo Blue PG 200%( Aakash Chemicals & Dyestuffs Inc. )