dye|World dye variety

Name:C.I.Food Red 3:1,C.I.14720:1

Molecular Structure: Single azo class

C.I.Food Red 3:1,C.I.14720:1,CAS 84238-07-3,458.47,C20H14N2O7S2

Molecular Formula:C₂₀H₁₄N₂O₇S₂

Molecular Weight: 458.47

CAS Registry Number:84238-07-3

Manufacturing Methods : 4-Hydroxynaphthalene-1-sulfonic acid diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid, and then into aluminum salt deposit color.

Properties and Applications: blu-ray red. Soluble in water for blu-ray red, moderate soluble in alcohol for red, slightly soluble in acetone. The strong sulfuric acid for purple, after diluted magenta precipitation; In nitric acid solution for wine, and then into a red light yellow. The dye solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution for red light orange brown.

List of Suppliers:

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