dye|World dye variety

Name:C.I.Acid Black 20,C.I.27065

Molecular Structure: Double azo class

C.I.Acid Black 20,C.I.27065,519.51,C26H18N5NaO4S,Sulphon Black R

Molecular Formula:C₂₆H₁₈N₅NaO₄S

Molecular Weight: 519.51

CAS Registry Number:

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and Naphthalen-1-amine coupling, its product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then acetyl hydrolysis.

Properties and Applications: black purple light. Soluble in water for purple. The strong sulfuric acid for green, diluted into wine red. In water solution to join hydrochloric acid have precipitation; Add sodium hydroxide had not changed.

List of Suppliers:

Sulphon Black R( Frado )