Ranbar Blue SR5028-2 is a triphenylmethane dye acid blue 9. This dye appears as a blue-purple powder, readily soluble in water, and its solution in water is green-blue. it becomes colorless with the emergence of deep purple precipitates. In concentrated sulfuric acid, this acidic dye exhibits an orange hue, which lightens to a pale yellow upon dilution.
Ranbar Blue SR5028-2 possesses vibrant color, strong dyeing power, and excellent evenness in dyeing. However, it is sensitive to copper and iron ions, requiring careful attention during the dyeing process to prevent any adverse effects on the color outcome.
Brand: Ranbar
Type number: Ranbar Blue SR5028-2
Size: 20KG
Other name: water soluble dye
Color Index: Acid Blue 9
CAS Registry Number: 3844-45-9
EINECS No.: 4223-333-98
Molecular formula: C37H34N2Na2O9S3
Molecular weight: 792.86
Chemical structure: Triphenylmethane
Dye type: Acid dyes (anionic dyes)
Solubility: easily soluble in water
Color hue: greenish blue
Performance Parameters:
Appearance and properties |
Blue-violet powder |
Coloring intensity |
100±3% |
Fineness (80um sieve residue) |
≤5.0% |
Melting point |
283°C |
PH value |
7-8 |
Solubility (80°C) |
60g/L |
Drying weight loss |
0.9-10% |
Insoluble matter content |
0.33% |
Water content |
3.45% |
Ranbar SR5028-2 Acid Blue 9 dye is primarily used in the textile processing industry, suitable for dyeing and printing of wool, silk, nylon fibers, polyamide, and wool-blend fabrics. It can also be employed for coloring leather, paper, wood, glasswater, cleaning agents, and other applications.

FAQ
Q1Are you a trade company or a manufacturer?
A : We are brand agent traders. We have 15 years of experience in the industry. Agent product models more than 1600, models complete. With 3 warehouses, the total storage area of 3000+.
Q2What if you can't find the right color?
A : If you have any different requirements,just contact us and we will meet you.
Q3How can I get a sample?
A : We are honored to offer you samples. If you need a sample to check quality, please feel free to contact us and we'll prepare a sample for you within 3 days.
Q4Can you provide the corresponding color formula according to our product color?
A : Yes, we can do Color matching service according to your. requirement.
Q5How about your lead time?
A : It depends. Usually, the delivery time is within 15 days upon receipt of your deposit of all product.
Q6What are your advantages?
A : the same product -- lower price the same price -- higher quality the same quality -- better service