Direct blue 116 (C.I. 27980)
- CAS NO.：6227-23-2
- Empirical Formula: C33H26N5Na3O11S2
- Molecular Weight: 801.68575
What is Direct blue 116 (C.I. 27980)?
Preparation
2-Amino-3,5-dimethylbenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, product to diazo, and 6-(3-Carboxy-4-hydroxyanilino)-1-naphthol-3-sulfonic acid?coupling.
Properties and Applications
red light blue. For the red light purple is soluble in water, soluble in alcohol. The strong sulfuric acid for blue-ray green, diluted to blue. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick sodium hydroxide solution has the purple precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4-5 | 4 | 1-2 | 2 | ||
Safety information for Direct blue 116 (C.I. 27980)
New Products
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