2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt

2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt 화학적 특성, 용도, 생산

• 제조 방법

  4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?diazo, and 5-Aminonaphthalen-1-ol?in acetic acid medium coupling.

• Properties and Applications

  green light blue. Soluble in water for purple. The strong sulfuric acid in blue, diluted began to change color, and then into a purple. In water solution to join hydrochloric acid colour and lustre is basic unchanged; Add thick sodium hydroxide solution for orange.
  

  Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
  		Fading	Stain		Fading	Stain	Fading	Stain
  ISO	4	3		2	2		3

2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt 준비 용품 및 원자재