dye|World dye variety

Name:C.I.Acid Black 69,C.I.30260

Molecular Structure: trisazo class

C.I.Acid Black 69,C.I.30260,981.92,C40H34N9Na3O11S3,Chrome Leather Fast Black S

Molecular Formula:C₄₀H₃₄N₉Na₃O₁₁S₃

Molecular Weight: 981.92

CAS Registry Number:

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 2-Aminobenzenesulfonic acid diazo, in alkaline conditions and the product of the above-mentioned income coupling, and then and 3-Acetylamino-N,N-diethylaniline coupling.

Properties and Applications: black. Soluble in water for violet black. The strong sulfuric acid for navy blue; Diluted into violet. In water solution to join strong hydrochloric acid have dark purple precipitation; Add thick sodium hydroxide solution have green gray precipitation.

List of Suppliers:

Chrome Leather Fast Black S ( IG Farbenindustrie AG )