C.I. Direct Orange 63
- CAS NO.：1325-31-1
- Empirical Formula: Unspecified
- Molecular Weight: 0
What is C.I. Direct Orange 63?
Preparation
(E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid diazo, coupled with phenol, again, then methylation hydroxyl with glucose will nitro reduction.
Properties and Applications
bright orange. Soluble in water for gold orange, slightly soluble in alcohol. The strong sulfuric acid for navy, Red sauce for diluted. The dye solution to join strong hydrochloric acid for hidden cyan, have precipitation. Add thick sodium hydroxide solution for red orange, precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4-5 | 5 | 2-3 | 2-3 | ||
Safety information for C.I. Direct Orange 63
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