必应染料-您身边的染料专家

Direct Blue 34

Name:C.I.Direct Blue 34,C.I.32055

Molecular Structure: trisazo class

C.I.Direct Blue 34,C.I.32055,CAS 6797-97-3,1121.97,C46H27N7Na4O14S4,Sirius Blue GG

C.I.Direct Blue 34,C.I.32055,CAS 6797-97-3,1121.97,C46H27N7Na4O14S4,Sirius Blue GG

Molecular Formula:C46H27N7Na4O14S4

Molecular Weight: 1121.97

CAS Registry Number:6797-97-3

Manufacturing Methods : 8-Acetamido-5-aminonaphthalene-2-sulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, again diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid, and then hydrolysis usions amino, again diazo, and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications: blue. Soluble in water as dark blue, not soluble in alcohol. The strong sulfuric acid in dark green light for blue, blue for diluted. The dye solution to join strong hydrochloric acid color unchanged, but have precipitation; Add thick sodium hydroxide solution same color, have precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 4-5 1-2 2

List of Suppliers:

Sirius Blue GG( Bayer Group )


Leave a Reply