| Customization: | Available |
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| CAS No.: | 1330-38-7 |
| Formula: | C32H14CuN8Na2O6S2 |
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Ranbar Blue SR5028-3 is a greenish-blue direct dye based on a phthalocyanine structure with a color index of Direct Blue 86. It is characterized by its vibrant color, strong dyeing power, good lightfastness, and excellent solubility. It is important to note that this dye exhibits relatively poor adsorption when dyeing cellulose fibers and is slightly sensitive to hard water with higher mineral content.
Ranbar Blue SR5028-3 direct dye forms a lake blue solution when dissolved in water. In concentrated sulfuric acid, it appears yellow-green, turning into a greenish-blue color upon dilution, with the formation of a bluish-green precipitate. It partially dissolves in concentrated nitric acid, displaying a light yellow-green color, while it remains insoluble in concentrated alkali.
| Appearance and properties | Gray-blue to blue powder |
| Coloring intensity | 100±3% |
| Fineness (180-micron sieve residue) | ≤5.0% |
| Solubility (80ºC) | 60g/L |
| Drying weight loss | 0.9-10% |
| Insoluble matter content | 0.25% |
| Water content | 3.25% |
| Lightfastness | 6-7 grade |
Ranbar Blue SR5028-3 is a greenish-blue direct dye based on a phthalocyanine structure with a color index of Direct Blue 86. It is characterized by its vibrant color, strong dyeing power, good lightfastness, and excellent solubility. It is important to note that this dye exhibits relatively poor adsorption when dyeing cellulose fibers and is slightly sensitive to hard water with higher mineral content.
Ranbar Blue SR5028-3 direct dye forms a lake blue solution when dissolved in water. In concentrated sulfuric acid, it appears yellow-green, turning into a greenish-blue color upon dilution, with the formation of a bluish-green precipitate. It partially dissolves in concentrated nitric acid, displaying a light yellow-green color, while it remains insoluble in concentrated alkali.
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