6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
2-Amino-4,6-dinitrophenol diazotization, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
dark red light brown. Soluble in water for purple. In concentrated sulfuric acid for red, orange precipitation after dilution. Dye aqueous solution to join concentrated hydrochloric acid have orange brown precipitation; Join concentrated sodium hydroxide solution have brown light purple precipitation.
Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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4
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6
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4
|
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4-5
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5
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5
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6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte