Mordant Brown 51
Name:C.I.Mordant Brown 51,C.I.26530
Molecular Structure: Double azo class
C.I.Mordant Brown 51,C.I.26530,CAS 6470-56-0,704.46,C24H12N4Na4O12S2,Azol Printing Brown 3RL
Molecular Formula:C24H12N4Na4O12S2
Molecular Weight: 704.46
CAS Registry Number:6470-56-0
Manufacturing Methods : 3-Amino-2-hydroxy-5-sulfobenzoic acid diazotization, and 5-Aminonaphthalene-2-sulfonic acid coupling, product and diazotization, coupled with 2-Hydroxybenzoic acid.
Properties and Applications: red light brown. Soluble in water for golden orange, insoluble in alcohol. In concentrated sulfuric acid to green light blue, after dilution to golden brown. Dye aqueous solution with concentrated hydrochloric acid for yellow brown to olive; Join concentrated sodium hydroxide solution for purple.
| Standard(cotton) | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 4-5 | 3-4 | 4 | 3 | 4-5 | ||
List of Suppliers:
Azol Printing Brown 3RL( IG Farbenindustrie AG )