Direct red 72 Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
6-Aminonaphthalene-2-sulfonic acid diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, O-Anisidine (0. 6 Moore) and O-Methylaniline (0.4 Moore) diazo, and coupled product matches.
Properties and Applications
red. Soluble in water for colourful red, soluble in ethanol is shallow orange red. The strong sulfuric acid to red light purple, diluted red brown to orange for brown. The dye solution to join strong hydrochloric acid for orange brown; With strong sodium hydroxide solution for red light brown to orange brown.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
4
5
3
1-2
1-2
Direct red 72 Upstream-Materialien And Downstream Produkte