Sulphon Black RA
- CAS NO.：6527-60-2
- Empirical Formula: C26H20N5NaO6S2
- Molecular Weight: 585.58
What is Sulphon Black RA?
Preparation
3-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, coupled with the 8-Aminonaphthalene-1-sulfonic acid .
Properties and Applications
red light black. Moderate soluble in water for violet black, slightly soluble in ethanol for purple. The strong sulfuric acid for green light blue, diluted into a deep red. In water solution to join strong hydrochloric acid deep red precipitate; With strong sodium hydroxide solution for purplish red color.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| AATCC | 6 | 3-4 | 2 | 1 | 1-2 | |||
Safety information for Sulphon Black RA
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