dye|World dye variety

Name:C.I.Acid Black 23,C.I.27230

Molecular Structure: Double azo class

C.I.Acid Black 23,C.I.27230,621.55,C26H17N5Na2O7S2,Sulphon Black S

Molecular Formula:C₂₆H₁₇N₅Na₂O₇S₂

Molecular Weight: 621.55

CAS Registry Number:

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and Naphthalen-1-amine coupling, its product to diazo, and 3-Hydroxynaphthalene-2,7-disulfonic acid coupling, and then acetyl hydrolysis.

Properties and Applications:  black. Soluble in water for blue-ray black. The strong sulfuric acid for green, a red after diluted. In water solution to join hydrochloric acid as a red; Add sodium hydroxide discoloration.

List of Suppliers:

Sulphon Black S ( Frado )