DIRECT BLUE 15 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2429-74-5 |
| Product name | DIRECT BLUE 15 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeReagent GradeCosmetic GradeFood 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 DIRECT BLUE 15
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DIRECT BLUE 15 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DIRECT BLUE 15
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Textile Dyeing | Applied for direct dyeing of natural fibers such as cotton and linen |
| Printing and Dyeing Industry | Pigment Paste Preparation | Used as a key dye component in the blue color spectrum |
| Printing Industry | Ink Formulation | Applied for coloring water-based inks |
| Cosmetics Industry | Colorant | Used in trace amounts to impart a blue hue in cosmetic formulations |
| Laboratory Research | Staining and Tracing | Applied for staining and tracer analysis in biological or chemical experiments |
Manufacturing Quality Control of DIRECT BLUE 15
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Dye Content) | UV-Vis Spectrophotometry | Quantifies dye concentration based on absorbance at characteristic lambda-max in standardized solvent system, using reference standard calibration. |
| Moisture Content | Karl Fischer Titration | Measures water content via stoichiometric reaction between water and iodine in a methanol-based reagent. |
| Inorganic Ash | Gravimetric Analysis (Ignition at 550 C) | Determines non-volatile inorganic residue after high-temperature incineration and weighing. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity using calibrated glass electrode in 1% w/v aqueous dispersion. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies trace metal elements after acid digestion by detecting element-specific emission wavelengths. |
| Chloride Content | Argentometric Titration (Mohr Method) | Determines chloride ions by titration with silver nitrate using potassium chromate indicator. |
| Sulfate Content | Gravimetric Analysis (Barium Sulfate Precipitation) | Precipitates sulfate as BaSO4, filters, dries, and weighs the insoluble residue. |
| Substance Not Extractable by Water | Gravimetric Analysis | Measures insoluble residue after refluxing sample in water, filtering, drying, and weighing. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV absorbance. |
| Color Strength (Relative to Standard) | UV-Vis Spectrophotometry | Compares absorbance ratio of sample vs certified reference under identical conditions to determine relative color strength. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dispersed particles by analyzing angular variation in laser light scattering. |
| Bulk Density | Graduated Cylinder Method (ASTM D1895) | Determines mass per unit volume of freely settled powder in a standardized cylinder. |
Technical Specifications of DIRECT BLUE 15
| Test Item | Specification |
|---|---|
| Appearance | Dark blue powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water with blue to greenish-blue clear solution |
| Color (APHA/Pt-Co) | Not applicable (solid) |
| Odor | Characteristic, faint |
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 DIRECT BLUE 15
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DIRECT BLUE 15
Packaging of DIRECT BLUE 15
Industrial DIRECT BLUE 15 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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