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sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate

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sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate Basic information
sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate Chemical Properties
sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate Usage And Synthesis
  • Preparation5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.
  • Properties and Applicationsred. Soluble in hot water for red, slightly soluble in cold water and ethanol. The strong sulfuric acid to red light purple, diluted precipitation is brown; In nitric acid solution for yellow brown; In a dilute sodium hydroxide solution for yellow brown solution. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide solution to become yellow.
    Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
    Fading Stain Fading Stain Fading Stain
    ISO 2-3 2 1 3 1 1 2 3
sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate (5850-93-1)Related Product Information
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