Ranbar Blue SR5030-2 is a triphenylmethane-type acid dye for wool with a color index of Acid Blue 7. It appears as a blue powder and, when dissolved, exhibits vibrant greenish-blue tones and excellent dyeing intensity. This acid dye is widely utilized in the textile industry for dyeing wool products. It is generally easy to use and can produce a full and long-lasting greenish-blue effect, making it a common choice for dyeing wool products.
Ranbar Blue SR5030-2 acid dye exhibits excellent solubility in water, dissolving in water at room temperature to form a transparent light greenish-blue solution without a tendency to aggregate. The addition of sodium hydroxide induces a change, and upon heating to boiling, the color precipitates from blue to purple. It dissolves in ethanol, giving a blue color, turns olive green when exposed to concentrated sulfuric acid, and precipitates yellow upon dilution.
- Brand: Ranbar
- Color Index: Acid Blue 7
- CAS Registry Number: 3486-30-4
- Molecular formula: C37H35N2NaO6S2
- Molecular weight: 690.81
- Molecular structure: Triphenylmethane
- Dye type: Acid dyes (anionic dyes)
- Solubility: easily soluble in water
- Color hue: greenish blue
Performance Parameters:
Appearance and properties |
Blue powder |
Coloring intensity |
100±3% |
Bulk density |
0.5g/cm³ |
PH value |
8.5-9.5 |
Solubility (80ºC) |
40g/L |
Insoluble matter content |
≤1.0% |
Water content |
≤5.0% |
Lightfastness |
Grade 2 |
Ranbar Blue SR5030-2 acid dye for wool exhibits excellent color fastness and vibrant hues, primarily used in the textile industry for dyeing wool products. Additionally, it demonstrates strong affinity for various fibers, effectively combining with many different types of fibers and substrates. This characteristic extends its applications in the textile industry to dyeing and printing various fiber materials such as silk, yarn, nylon, and polyester fabrics. This acid dye can also be employed for coloring leather, rubber, paper, wood, soap, and cosmetics.

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