나프탈렌스칼렛B

나프탈렌스칼렛B 화학적 특성, 용도, 생산

• 제조 방법

  6-Aminonaphthalene-2-sulfonic acid diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.

• Properties and Applications

  red. Soluble in water for yellow light red. The strong sulfuric acid for product red, diluted for scarlet solution, then become yellow brown precipitation. Join the hydrochloric acid in aqueous solution after yellow brown precipitation; Add sodium hydroxide solution don’t change color.
  

  Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
  		Fading	Stain		Fading	Stain	Fading	Stain
  ISO	3	3	4-5	4	1	3-4	3	1

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