Product description:
Acid black 24 is a blue-black powder. Soluble in water appears red blue to black, soluble in ethanol is navy blue, slightly soluble in acetone, insoluble in other
organic solvents. In the presence of concentrated sulfuric acid, it will appear gray blue, after dilution, it will appear dark
green light blue; When concentrated nitric acid appears reddish brown, it turns yellow. The aqueous solution with concentrated hydrochloric acid is greenish-blue. Add sodium hydroxide solution to render date red.
Product parameter:
| Synonyms | C.I. 26370; C.I. Acid Black 24; C.I. Acid Black 24, disodium salt (8CI); Acid Black 24;Sulfone Cyanin Black BB；Tracid black BR； Weak Acid Black BR |
CAS No. | 3071-73-6 |
| EINECS No. | 221-343-4 |
| C.I. No. | 26370 |
| Strength | 150% |
| Molecular formula | C36H23N5Na2O6S2 |
| Molecular Weight | 731.7073 |
| Application | It is used for dyeing wool fabrics, especially for dyeing coarse wool products and wool blended fabrics. It can also be used for dyeing nylon, silk and leather. Barium salt can be used as organic pigment |
| Water solubility | 50 g/l (90℃) |
| Melting point | >300°C |
| LogP | 11.76340 |
| PSA | 192.63000 |
| Storage condition | Room Temprature |
Product picture:
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