C.I. Direct blue 38, trisodium salt

C.I. Direct blue 38, trisodium salt 화학적 특성, 용도, 생산

• 제조 방법

  6-Amino-4-hydroxynaphthalene-2-sulfonic acid acid diazo, in acid conditions coupled with Benzene-1,3-diamine, 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, again in alkaline conditions and accidentally coupled nitrogen compounds.

• Properties and Applications

  dark blue. For a blue-black soluble in water, soluble in ethanol is shallow purple. The strong sulfuric acid for blue, shallow purple for diluted. The dye solution to join strong hydrochloric acid have violet and precipitation; With strong sodium hydroxide solution for dark purple.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
  				Fading	Stain	Fading	Stain
  ISO	3	4-5	2	1-2		1-2

C.I. Direct blue 38, trisodium salt 준비 용품 및 원자재