REACTIVE BLUE 19 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2580-78-1 |
| Product name | REACTIVE BLUE 19 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for REACTIVE BLUE 19
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk REACTIVE BLUE 19 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of REACTIVE BLUE 19
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dyeing agent for cellulose fibers such as cotton, linen, and viscose | Applied in immersion dyeing or pad dyeing processes; forms covalent bonds with fibers under alkaline conditions |
| Printing & Dyeing Industry | Colorant for printing, suitable for reactive dye printing | Processed via cold pad-batch or steaming fixation; delivers sharp print definition and excellent color fastness |
| Paper Industry | Colorant for paper dyeing, imparting a blue hue | Dyeing conducted under neutral to mildly alkaline conditions; provides good lightfastness and wet-processing fastness |
| Life Sciences Research | Protein electrophoresis staining and tracer agent | Used as a pre-staining or post-staining reagent for protein visualization in SDS-PAGE gels |
Manufacturing Quality Control of REACTIVE BLUE 19
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Content (purity) | UV-Vis Spectrophotometry | Measures absorbance at lambda-max (approx. 605 nm) and calculates concentration using Beer-Lambert law and certified reference standard. |
| Moisture Content | Karl Fischer Titration | Quantifies water via coulometric or volumetric titration with iodine-based reagent; reaction stoichiometry enables precise water determination. |
| Inorganic Salts (Na2SO4) | Gravimetric Analysis | Precipitates sulfate as BaSO4, filters, dries, and weighs to determine total inorganic salt content by mass difference. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Atomizes sample and measures characteristic emission intensities of metal elements after plasma excitation for multi-element quantification. |
| Water Insolubles | Filtration and Gravimetry | Dissolves sample in hot water, filters through pre-weighed sintered glass crucible, dries, and weighs residue. |
| pH of 1% Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity using calibrated glass electrode in standardized 1% w/v aqueous solution at 25 C. |
| Chloride Ion | Argentometric Titration (Mohr method) | Titrates Cl- with AgNO3 using K2CrO4 indicator; endpoint signaled by formation of red Ag2CrO4 precipitate. |
| Ash Content | Ignition at 550 C | Heats dried sample in muffle furnace to constant weight; residual inorganic oxide mass represents ash content. |
| Particle Size Distribution | Laser Diffraction | Analyzes angular scattering pattern of laser beam passed through dispersed sample to calculate size distribution based on Mie theory. |
| Color Strength (Relative) | UV-Vis Spectrophotometry | Compares absorbance ratio of test sample vs. primary standard under identical conditions to determine relative dyeing power. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates components on reversed-phase column and detects/quantifies impurities using UV absorbance at specified wavelength. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume after standardized tapping of powder in graduated cylinder according to ASTM D1895. |
Technical Specifications of REACTIVE BLUE 19
| Test Item | Specification |
|---|---|
| Appearance | Dark blue crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Water Content (KF) | <=0.4% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.5% |
| Solubility | Freely soluble in water |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of REACTIVE BLUE 19
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of REACTIVE BLUE 19
Industrial REACTIVE BLUE 19 Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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