C.I. Mordant Black 50
- CAS NO.：8004-69-1
- Molecular Weight: 0
- EINECS: 616-839-6
What is C.I. Mordant Black 50?
Preparation
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 |
Safety information for C.I. Mordant Black 50
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