Product description:
Acid blue 9 (CI 42090), also known as brilliant blue, chemical formula is C37H34N2Na2O9S3, often used in colorants.
Product parameter:
CAS No. | 2650-18-2 |
EINECS No. | 220-168-0 |
Strength | 200% |
Molecular Weight | 792.84 |
Appearance | Purple red powder |
Application | Used for dyeing wool, silk, nylon, wool blended fabrics and direct printing of wool and silk fabrics. This product is also used as food dye and organic pigment. It can also be used for coloring leather, paper, etc. |
Solubility | Easily soluble in water, solubility in water (90℃) is 50g/L, the aqueous solution appears green light blue, almost colorless after adding sodium hydroxide, accompanied by deep purple precipitation. Soluble in ethanol. Orange in concentrated sulfuric acid and pale yellow in dilution. When dyeing, it is sensitive to copper and iron ions and affects the color light. |
Water solubility | 1000g/L at 24.3℃ |
Density | 1.1666(rough estimate) |
Melting point | 283℃ |
Vapour pressure | 0Pa at 25℃ |
Refractive index | 1.6000 |
Stability | Light Sensitive |
Specific gravity | 1.233 |
LogP | -3 at 23℃ |
Product picture:
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