AMIDO GREEN BLACK B
- CAS NO.：5850-39-5
- Empirical Formula: C22H16N6Na2O7S2
- Molecular Weight: 586.51
- MDL number: MFCD00068415
- EINECS: 227-452-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is AMIDO GREEN BLACK B?
Preparation
4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and its product under alkaline conditions and then with the coupling diazotized aniline, and reducing the nitro group with sodiumn.
Properties and Applications
dark blue light green green light to dark. Dark green light to black powder. Soluble in water and soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. Dyes in 10% of sodium hydroxide solution for purple solution; The strong sulfuric acid for blue-ray green, diluted into blue, precipitation; In nitric acid solution for brown. The water solution is dark blue light green, add thick sodium hydroxide solution to purple. This product is suitable for the wool, silk, wool blended fabric, polyamide fiber of dyeing and printing, also suitable for leather and paper color.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3-4 | 3 | 1 | 4-5 | 2 | 1 | 4 | 1 |
| AATCC | 3 | 2-3 | 2-3 | 3 | 2-3 | 2-3 | 3 | 3 |
Properties of AMIDO GREEN BLACK B
| Melting point: | >300℃ |
| EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(4-aminophenyl)azo]-5-hydroxy-6-(phenylazo)-, disodium salt (5850-39-5) |
Safety information for AMIDO GREEN BLACK B
Computed Descriptors for AMIDO GREEN BLACK B
AMIDO GREEN BLACK B manufacturer
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