Direct blue 9 (C.I. 24155)

Direct blue 9 (C.I. 24155) 화학적 특성, 용도, 생산

• 제조 방법

  3,3′-Dimethoxylbenzidine double nitriding, first and 3-Hydroxynaphthalene-2,7-disulfonic acid coupled , and then 4-Hydroxynaphthalene-1-sulfonic acid coupling.

• Properties and Applications

  blue. Soluble in water, soluble in alcohol. The strong sulfuric acid for blue, blue after diluted precipitation. The dye water solution is blue, to join the hydrochloric acid have precipitation of dark; Add sodium hydroxide solution for purplish red color.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
  				Fading	Stain	Fading	Stain
  ISO	3-4	4	2	1-2		2

Direct blue 9 (C.I. 24155) 준비 용품 및 원자재