Mordant Black 50
Name:C.I.Mordant Black 50,C.I..27270
Molecular Structure: Double azo class
C.I.Mordant Black 50,C.I.27270,CAS 8004-69-1,790.58,C27H14N4Na4O13S3,Magracrom Black V
Molecular Formula:C27H14N4Na4O13S3
Molecular Weight: 790.58
CAS Registry Number:8004-69-1
Manufacturing Methods :3-Amino-2-hydroxybenzoic acid and 5-Amino-2-hydroxybenzoic acid diazotization, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazotization, and 3-Hydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications: black. Soluble in water is purple, slightly soluble in alcohol for pale yellow. In concentrated sulfuric acid to blue light green, dilution for bordeaux red. Dye aqueous solution to join concentrated hydrochloric acid for bordeaux red; Join strong caustic for deep navy blue.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 6 | 4-5 | 4 | 4 | 4-5 | 4-5 |
List of Suppliers:
Magracrom Black V( Laboratory for the Industrial Application of Dyes )