1,3-Naphthalenedisulfonic acid, 8,8'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[7-hydroxy-, tetrasodium salt

1,3-Naphthalenedisulfonic acid, 8,8'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[7-hydroxy-, tetrasodium salt Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  4-(4-Aminophenyl)benzenamine double nitriding, and 7-Hydroxynaphthalene-1,3-disulfonic acid (2 Moore) coupled.

• Properties and Applications

  purple. Soluble in water. The strong sulfuric acid for purple, diluted for red jade; In nitric acid solution for orange. The dye solution to join strong sodium hydroxide solution in red.
  

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

1,3-Naphthalenedisulfonic acid, 8,8'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[7-hydroxy-, tetrasodium salt Upstream-Materialien And Downstream Produkte