Reactive Blue 81
- CAS NO.：75030-18-1
- Empirical Formula: C25H18Cl2N7NaO10S3
- Molecular Weight: 766.53
What is Reactive Blue 81?
Preparation
5-Amino-2-(phenylamino)benzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and then and 2,4,6-Trichloro-1,3,5-triazine condensation .
Properties and Applications
red light blue. Blue powder, in the water solubility is better. Used for cotton fabrics, polyamide, wool dyeing or fountain of rolling dyeing.
| Standard(cellulose) | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 3-4 | 4-5 | |||||
Safety information for Reactive Blue 81
Reactive Blue 81 manufacturer
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