Acid Red 34
- CAS NO.：6360-04-9
- Empirical Formula: C16H14N4O7S2.2Na
- Molecular Weight: 484.42
- EINECS: 228-821-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Acid Red 34?
Preparation
2,5-Diaminobenzenesulfonic acid diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid acid in acid conditions coupled, then use the method will be reduced to amino nitro.
Properties and Applications
colourful red blue light. Soluble in water is red to blue light purple, slightly soluble in ethanol, soluble in soluble fiber element, insoluble in other organic solvents. Meet strong sulfuric acid is orange red, it will be diluted in orange red still. Its water solution and 10% sulfuric acid as pink; And 10% sodium hydroxide solution is pink. Dyeing wool products and tussah, also can be used for paper, leather and casein plastic dyeing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 6-7 | 2-3 | 3 | 3 | 2 | |||
| AATCC | 5-6 | 3 | 3 | 3 | ||||
Properties of Acid Red 34
| Density | 1.631g/cm3 at 25℃ |
| form | Powder |
| EPA Substance Registry System | 2-Naphthalenesulfonic acid, 6-amino-5-[(4-amino-2-sulfophenyl)azo]-4-hydroxy-, disodium salt (6360-04-9) |
Safety information for Acid Red 34
Computed Descriptors for Acid Red 34
Acid Red 34 manufacturer
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