Basic Blue 7 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2390-60-5 |
| Product name | Basic Blue 7 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Basic Blue 7
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Basic Blue 7 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Basic Blue 7
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dyeing of wool, silk, nylon, and other fabrics | Dyeing in acidic or neutral dye baths; commonly used in combination with other dyes for shade adjustment |
| Paper Industry | Production of colored paper and paper products | Used as a tinting agent or direct dye for pulp dyeing to enhance paper appearance |
| Biological Staining | Biological sample staining for microscope slide preparation | Applied as a stain for contrast staining in histological or cytological specimens |
| Ink Manufacturing | Production of writing inks, printing inks, and office supplies | Formulated as a colorant with solvents, resins, and other components to produce inks |
Manufacturing Quality Control of Basic Blue 7
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies dye concentration based on absorbance at characteristic wavelength using Beer-Lambert law with reference standard. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Determines inorganic residue after high-temperature combustion and subsequent weighing of the residual ash. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies multiple heavy metal elements by measuring atomic emission intensities after plasma atomization and excitation. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Detects chloride ions via precipitation titration using silver nitrate and a silver indicator electrode to identify endpoint potential shift. |
| Sulfate Impurity | Gravimetric Analysis (BaSO4 Precipitation) | Measures sulfate as insoluble barium sulfate precipitate formed after acidification and barium chloride addition, followed by drying and weighing. |
| pH of Aqueous Solution | pH Meter Measurement | Determines hydrogen ion activity in a standardized aqueous suspension or solution using calibrated glass electrode system. |
| Solubility in Water | Visual Observation / Filtration Test | Evaluates complete dissolution of specified amount in distilled water at defined temperature and time, assessed by absence of undissolved particles or haze. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents or volatile organics using capillary column and flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution by analyzing angular variation in laser light scattering pattern of dispersed sample. |
| Color Strength (Relative) | UV-Vis Spectrophotometry | Compares absorbance ratio of sample solution to certified reference standard under identical conditions to determine relative dyeing power. |
| Bulk Density | Graduated Cylinder Method (ASTM D1895) | Determines mass per unit volume by pouring powder into a calibrated cylinder and measuring settled volume after controlled tapping. |
Technical Specifications of Basic Blue 7
| Test Item | Specification |
|---|---|
| Appearance | Purple solid |
| Purity | >=98.0% (NMR) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Freely soluble in chloroform and methanol; slightly 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 Basic Blue 7
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Basic Blue 7
Packaging of Basic Blue 7
Industrial Basic Blue 7 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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