Mordant Yellow 21
Mordant Yellow 21 Basic information
- Product Name:
- Mordant Yellow 21
- Synonyms:
-
- Mordant Yellow 21
- C.I.Mordant Yellow 21:C.I.23130
- CAS:
- 6470-36-6
- MF:
- C26H17N6NaO10
- MW:
- 596.44
- Mol File:
- 6470-36-6.mol
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Mordant Yellow 21 Usage And Synthesis
Preparation
2,2′-dinitrobenzidine double nitrogen, and 2-Hydroxybenzoic acid(2 Moore) coupling.
Properties and Applications
red light yellow. Soluble in water for yellow brown. In concentrated sulfuric acid for cherry red, yellow brown precipitate after dilution. Dye aqueous solution with concentrated hydrochloric acid have yellow brown precipitation; Sodium hydroxide solution with strong for red light brown.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 5-6 | 4 | 5 | 4-5 | 5 | |