3-[[4'-[(8-Amino-1-hydroxy-5-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,5-disulfonic acid disodium salt

3-[[4'-[(8-Amino-1-hydroxy-5-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,5-disulfonic acid disodium salt Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then and 8-Hydroxynaphthalene-1,6-disulfonic acid coupling.

• Properties and Applications

  dark red light purple to red light navy blue. Soluble in water for blue purple, not soluble in alcohol. The strong sulfuric acid for blue, purple precipitation after diluted. The dye solution to join hydrochloric acid blue precipitation; Add thick sodium hydroxide solution for red wine.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
  				Fading	Stain	Fading	Stain
  ISO	5	4	1	2