Mordant Red 8
Name:C.I.Mordant Red 8,C.I.23095
Molecular Structure: Double azo class
Molecular Formula:C29H17N5Na2O9S
Molecular Weight: 657.52
CAS Registry Number:
Manufacturing Methods : 4-(4-Aminophenyl)-3-nitro-aniline double nitrogen, first and 2-Hydroxybenzoic acid coupling, again with 4-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications: dark yellow red. Soluble in water for red, slightly soluble in alcohol for red orange. In concentrated sulfuric acid for sauce red, after dilution for cloudy pink. Dye aqueous solution to join concentrated hydrochloric acid for shallow red; Join concentrated sodium hydroxide solution for orange brown.
Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
Alkali | Acid | ||||||
AATCC | Dry 5,wet 4-5 | 4 | 3-4 | 4-5 | 3-4 |
List of Suppliers:
Anthracene Red ( Society of Chemical Industry )
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