dye|World dye variety

Name:C.I.Acid Violet 13,C.I.16640

Molecular Structure: Single azo class

C.I.Acid Violet 13,C.I.16640,CAS 5850-63-5,518.43,C20H12N2Na2O8S2

Molecular Formula:C₂₀H₁₂N₂Na₂O₈S₂

Molecular Weight: 518.43

CAS Registry Number:5850-63-5

Manufacturing Methods : Naphthalen-1-amine diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications:  red light purple. For purple soluble in water, soluble in alcohol. The strong sulfuric acid are green light blue, diluted into a red light purple. In water solution to join strong hydrochloric acid color change to blue; Add thick sodium hydroxide solution for yellow red.

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