Natrium-5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]naphthalin-1-sulfonat Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
2-Amino-4-nitrophenol diazotization, and 5-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
brown. Soluble in water for wine red, soluble in ethanol to red. In concentrated sulfuric acid to purple, dilution after pink. Dye aqueous solution to join concentrated hydrochloric acid to red; Join concentrated sodium hydroxide solution for red orange brown.
Natrium-5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]naphthalin-1-sulfonat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte