Disperse Blue 56 CAS 12217-79-7
Disperse Blue 56 dark blue powder. Dissolve in organic solvents such as ethanol, acetone, and pyridine. It appears green yellow in concentrated sulfuric acid and turns red blue after dilution. When dyeing, the color light remains unchanged when encountering iron ions, but undergoes significant changes when encountering copper ions. The maximum absorption wavelength (λ max) is 630nm.
| Item | Specification |
| Density | 1.4410 (rough estimate) |
| Refractivity | 1.6800 (estimate) |
| Boiling point | 129°C (rough estimate) |
| MW | 349.14 |
| MF | C14H9BrN2O4 |
| keyword | Blue 2BLN |
Disperse Blue 56 is mainly used for dyeing polyester and its blended fabrics. It appears green yellow in concentrated sulfuric acid and turns red blue after dilution. When dyeing, the color light remains unchanged when encountering iron ions, but undergoes significant changes when encountering copper ions. The maximum absorption wavelength (λ max) is 630nm.
Usually packed in 25kg/drum,and also can be do customized package.
Disperse Blue 56 CAS 12217-79-7
Disperse Blue 56 CAS 12217-79-7
