High-purity colorants and functional dyes optimized for denim, textile, paper, and industrial wood staining.
Rhodamine B (specifically classified under Basic Violet 10, CAS No. 81-88-9) constitutes one of the most chemically vital, high-efficiency synthetic dyes utilized across modern manufacturing workflows. Characterized by its striking fluorescence profile, high quantum yield, and robust molecular affinity, it serves as a foundation for multiple industrial application pathways. As a premier global dye factory, Tianjin Sunrise Chem Group coordinates high-volume synthesis and distribution of high-grade Rhodamine B (specifically our market-leading 540% concentration variant), achieving the ideal balance between intense optical output, structural reliability, and cost-efficiency.
Our manufacturing ethos prioritizes advanced quality control and ecological integration. In the modern marketplace, sourcing colorants requires more than simple chemical logistics. Industrial buyers must ensure their suppliers adhere to strict chemical governance standards. Our advanced production pipelines satisfy strict environmental frameworks, enabling manufacturers to integrate vibrant coloring properties while retaining compliance with international eco-standards.
Information Gain Metric: Standard Basic Violet 10 often contains traces of hazardous unreacted intermediates. Tianjin Sunrise Chem Group utilizes a state-of-the-art closed-loop crystallization process that substantially reduces free amine residues, optimizing the final product for sensitive international applications.
Rhodamine B is a synthetic organic compound belonging to the xanthene class. The molecule incorporates a conjugated ring structure that facilitates highly efficient electron excitation. This yields a strong absorption band at approximately 543 nm and a corresponding fluorescent emission band peaking at 565 nm. This specific range is critical for applications that demand high visual prominence, such as warning sign dyes, specialized industrial markings, and high-visibility paper stocks.
| Parameters | Specifications (High-Quality Rhodamine B 540%) | Testing Methodology |
|---|---|---|
| Chemical Name | [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylammonium chloride | IUPAC Nomenclature Verification |
| Color Index No. | C.I. Basic Violet 10 (45170) | Standard CI Registry Validation |
| Appearance | Dark Green Lustrous Crystalline Powder / Green Crystals | Visual / Microscopic Inspection |
| Dye Strength | 540% ± 5% (Custom dilutions available upon request) | UV-Vis Spectrophotometry vs. Standard |
| Moisture Content | ≤ 4.0% | Karl Fischer Titration Method |
| Water Insolubles | ≤ 0.5% | Gravimetric Filtration Analysis |
| Solubility | Excellent solubility in water and ethanol | Standard Dissolution Testing (25°C) |
Understanding solubility parameters is crucial for formulation optimization. Rhodamine B features basic chemical traits that allow it to dissolve rapidly in water, forming a brilliant bluish-red solution that fluoresces yellow-green upon dilution. Its structural composition makes it compatible with direct applications on tannic acid-mordanted cotton, wool, silk, and acrylic substrates.
In large-scale manufacturing, color performance is heavily dependent on the chemical environment of the carrier. We have engineered custom formulation strategies to ensure consistent performance across diverse industrial environments.
The paper and packaging industries require cost-effective colorants that offer high stability and color strength. Basic Violet 10 exhibits strong affinity to unbleached kraft pulps and lignin-rich fibers. During sizing, the dye interacts with cellulose structures to resist migration under wet conditions. For high-speed sizing operations, Sunrise Chem provides liquid Rhodamine concentrates that prevent dust contamination and minimize mixing variations.
Due to its high fluorescence detection limits, Rhodamine B is widely used as a tracer in hydrological flow analysis. Its low detection threshold allows scientists to monitor subterranean aquifers, identify municipal piping leaks, and map environmental run-off patterns. Our high-purity crystalline formats contain minimal heavy metal impurities, making them suitable for controlled trace releases.
In manufacturing colored incense and joss paper, dyes must endure thermal stress without losing color intensity. Our specialized **Rhodamine B 540% Incense Dyes** are chemically structured to prevent thermal decomposition during drying and combustion, ensuring the finished products retain their rich color.
Tianjin Sunrise Chem Group manages robust supply chains serving chemical distributors and manufacturing mills worldwide. Our market reliability is supported by a deep commitment to environmental, social, and corporate governance (ESG).
We strictly prioritize chemical safety and product quality. Each batch is fully certified to ensure regulatory compliance for our global partners.
GOTS & ZDHC Certified Chemical Inputs: Environmental protection is the cornerstone of our innovation. We dedicate ourselves to providing clients with eco-friendly, high-quality colorants that balance productivity with environmental harmony, driving the industry towards a more sustainable development path while delivering high-performance products—for a greener textile industry and a sustainable future. Achieving ZDHC Level 3 and GOTS (Global Organic Textile Standard) certification confirms that our production systems adhere to strict chemical management, pollution prevention, and waste minimization protocols.
Cooperating with textile and paper mills for many years shows that the factory has established a strong and reliable business relationship. This kind of long-term collaboration can bring numerous benefits, such as consistent orders, shared resources, and mutual support. It also indicates that the factory has a good track record of delivering quality products and meeting the needs of its partners. Our mission is to drive business growth by providing reliable and customized products. Our goal is to make a significant contribution to our customers' success by consistently delivering first-class products and exceptional customer service. By building lasting partnerships, we strive to be a catalyst for our clients' success.
Operating globally requires specialized logistics and direct support structures. With years of export experience, we have established distribution channels across key hubs in Central and South America, Southeast Asia, Europe, and the Middle East. Our logistics operations utilize optimized container packing and moisture-proof packaging to preserve product integrity during ocean transit.
One of the main reasons why customers choose us is the stable supply of dyes we provide. We have developed efficient manufacturing processes to ensure a continuous supply of our products. Our factories feature state-of-the-art equipment and a knowledgeable workforce, which enables us to fulfill the most demanding orders. With us, you can begin your manufacturing journey with confidence knowing that dye availability will never be an issue.
Apart from a steady supply, the quality of our dyes is another reason why we stand out in the market. We, SUNRISE CHEM, take pride in our commitment to producing dyes that consistently meet high standards of quality. Our experienced technicians carefully monitor the manufacturing process, ensuring that each batch of dyes is carefully tested for color fastness, durability, and other essential parameters. By choosing us, you can rest assured that your products will stand out in the market due to the vibrant and long-lasting color our dyes provide.
We firmly believe in building relationships with our clients based on trust and mutual benefit. We know that our customers' success is our success, so we are committed to providing quality services to meet their needs. Our dedicated customer support team is on hand to address any questions or concerns you may have. We value your feedback and strive to continuously improve our operations to serve you better. Our purpose is not just to supply dyes, but to be your trusted partner in achieving your business goals. By choosing us, you choose a partnership built on reliability, transparency and mutual success.
The next era of color chemistry relies heavily on green synthesis and efficient effluent management. Our research and development center focuses on minimizing chemical waste through clean synthetic routes. Traditional production of xanthene dyes can generate non-biodegradable reaction by-products. Sunrise Chem's new development program utilizes catalytic condensation to reduce the volume of liquid by-products, which improves raw material utilization and eases downstream treatment.
We also collaborate with industry partners to refine wastewater treatment systems for processing plant effluent containing Basic Violet 10. Our recommended protocols combine advanced oxidation processes (AOPs), utilizing Fenton-like reagents, with optimized adsorption using modified carbon filters. This method breaks down the dyestuff's conjugated chromophore structure, simplifying effluent purification.
Direct answers to common technical queries from procurement managers and chemical process engineers.
The fluorescence intensity of Basic Violet 10 is highly sensitive to solvent polarity, pH conditions, and concentration. It performs optimally within a pH range of 4.0 to 7.0. In highly alkaline media, the xanthene dye molecules may undergo a structural change that reduces their emission intensity. Additionally, excessive concentrations can lead to fluorescence self-quenching, meaning precision dosing is critical for analytical and marker applications.
A higher dye strength (e.g., our 540% standard) reduces the chemical volume required during transport and storage, lowering shipping costs and reducing the footprint in storage facilities. For manufacturers, using concentrated dyes simplifies color matching adjustments and enables more efficient formulation of liquid concentrates and batch solutions.
Our raw materials and manufacturing intermediates are subject to systematic laboratory checks to ensure they are free from banned substances or restricted aromatic amines. ZDHC Level 3 certification confirms that our production processes do not intentionally use or release hazardous chemical by-products, ensuring compliance for export to environmentally regulated markets.
To prevent moisture absorption during transit, we pack our dyes in 25kg iron drums, fiber drums, or multi-ply woven bags lined with double-layer polyethylene inserts. For large-scale industrial orders, we offer customizable bulk bags and palletized packaging systems tailored to specific unloading processes.
Highly stable chemical colorants and functional direct, solvent, and basic dyes for specialized manufacturing.
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