Acid Red 21
- Molecular Weight: 0
What is Acid Red 21?
Preparation
2-Amino-4-methylanisole diazo, and 8-Hydroxynaphthalene-1,6-disulfonic acid?coupling.
Properties and Applications
red. Soluble in water for blu-ray red. The strong sulfuric acid for violet blue, diluted red for blue-ray. In water solution to join hydrochloric acid discoloration; Add sodium hydroxide is yellow.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| AATCC | 5-6 | 1 | 1 | 1 | 1 | |||
Safety information for Acid Red 21
New Products
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![2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt](https://img.chemicalbook.in/CAS/20200331/GIF/5864-85-7.gif)
![Chromate, hydroxy[4-hydroxy-3-nitro-5-[(1,2,3,4-tetrahydro-2,4-dioxo-3-quinolinyl)azo]benzenesulfonato]-, sodium](https://img.chemicalbook.in/CAS/20211123/GIF/6656-02-6.gif)
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