2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt

2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt 화학적 특성, 용도, 생산

• 제조 방법

  4-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling.

• Properties and Applications

  blue and black. Soluble in water for a blue-black, easily soluble in soluble fiber element, insoluble in other organic solvents. In the dark for the strong sulfuric acid, after diluted blue-black precipitation; In the dark for strong nitric acid solution, and then into a chestnut; In 10% of sodium hydroxide solution for black solution in red.
  

  Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
  		Fading	Stain		Fading	Stain	Fading	Stain
  ISO	6-7	4	3-4	3	4	4	4	3-4
  AATCC	7-8	4	4	1	2	2	3	3

2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt 준비 용품 및 원자재