5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt

5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling ,?Reducing the nitro group, and then diazotization, coupling with 2-Hydroxybenzoic acid, and then sulfonated.

• Properties and Applications

  orange. Soluble in water for golden yellow, not soluble in ethanol. In concentrated sulfuric acid to red light purple, after dilution for green yellow until golden brown. Dye aqueous solution to join concentrated hydrochloric acid for green yellow until golden brown, Join concentrated sodium hydroxide solution for ruby red.
  

  Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
  			Alkali	Acid
  ISO		5			5	4	5

5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt Upstream-Materialien And Downstream Produkte

6492-53-1, 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt Verwandte Suche: