AZOCAL A
- CAS NO.：1836-22-2
- Empirical Formula: C17H9N2Na3O9S2
- Molecular Weight: 518.36
- MDL number: MFCD00046379
- EINECS: 217-401-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:50
What is AZOCAL A?
The Uses of AZOCAL A
Azocal A is an organic sulfonated monoazo dye, and a ground water pollutant.
Preparation
2-Aminobenzoic acid diazotization, and 3-Hydroxynaphthalene-2,7-disulfonic acid?coupling.
Properties and Applications
blue light red. Soluble in water for orange, slightly soluble in ethanol, acetone and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid for yellow red, dilution have orange precipitation; In concentrated nitric acid for orange solution; In 10% sodium hydroxide solution for orange. Its aqueous solution to join 10% sulfuric acid color turn yellow. Used for wool and silk dyeing, also can be used for leather dyes and used as a pigment.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 3 | 6-7 | 3-4 | 3-4 | 5 | 4-5 | 5 |
| AATCC | Dry 2,wet 5 | 6 | 3-4 | 4 | 5 | 5 | |
Properties of AZOCAL A
| form | powder to crystal |
| Colour Index | 16105 |
| color | Orange to Amber to Dark red |
| Water Solubility | almost transparency |
| CAS DataBase Reference | 1836-22-2 |
| EPA Substance Registry System | Benzoic acid, 2-[(2-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-, trisodium salt (1836-22-2) |
Safety information for AZOCAL A
Computed Descriptors for AZOCAL A
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