dye|World dye variety

Name:C.I.Acid Black 34,C.I.15715

Molecular Structure: Single azo,Metal Complexes

C.I.Acid Black 34,C.I.15715,CAS 6408-00-0,585.59,C27H20N3NaO7S2,Silk Fast Grey BB

Molecular Formula:C₂₇H₂₀N₃NaO₇S₂

Molecular Weight: 585.59

CAS Registry Number:6408-00-0

Manufacturing Methods : 4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol matches that, in water solution and formic acid chromium common heating, in 115 ℃ keep 2 hours, and then mixed with batches of no complexation half the dye, and sodium hydroxide move into basic. The product is about 2 to 3 Moore single atoms chromium azo dyes. Then will the nitro reduction for amino, again with 4-Methylbenzene-1-sulfonyl chloride condensation.

Properties and Applications: blue and black.

List of Suppliers:

Silk Fast Grey BB( IG Farbenindustrie AG )