DIRECT BLACK 22 Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 6473-13-8 |
| Product name | DIRECT BLACK 22 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for DIRECT BLACK 22
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DIRECT BLACK 22 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DIRECT BLACK 22
| Industry | Application | Process |
|---|---|---|
| Dye Manufacturing | Intermediate for reactive dyes, used in the synthesis of azo-type reactive dyes | Diazotization-coupling reaction; coupling with aromatic amines or phenolic compounds to form dye molecules |
| Textile Printing & Dyeing | Improves color fixation rate and wet fastness of dyes on cellulosic fibers (e.g., cotton, linen) | Acts as a reactive group carrier, forming covalent bonds with fiber hydroxyl groups during dyeing |
| Paper Manufacturing | Intermediate for paper colorants, enhancing paper coloration performance | Participates in dye synthesis and fixation reactions during pulp dyeing or surface sizing |
Manufacturing Quality Control of DIRECT BLACK 22
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (purity) | Acid-base titration | Quantifies active component via stoichiometric neutralization with standardized HCl solution. |
| Moisture content | Karl Fischer titration | Measures water content based on electrochemical reaction between iodine and water in pyridine/methanol medium. |
| Heavy metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies trace metals by measuring element-specific atomic emission intensities after plasma atomization. |
| Chloride impurity | Potentiometric titration with AgNO3 | Determines chloride concentration by monitoring potential change during silver nitrate titration. |
| Sulfate impurity | Gravimetric analysis | Precipitates sulfate as BaSO4 and determines mass after drying and weighing. |
| Iron content | Atomic Absorption Spectroscopy (AAS) | Measures iron concentration by quantifying absorption of specific wavelength light by ground-state Fe atoms in flame. |
| pH of aqueous solution | pH meter measurement | Determines hydrogen ion activity using calibrated glass electrode system in 1% w/v aqueous suspension. |
| Residue on ignition | Gravimetric analysis | Measures non-volatile inorganic residue after high-temperature incineration at 700-800 C. |
| Particle size distribution | Laser diffraction | Analyzes particle size by measuring angular variation in intensity of laser light scattered by dispersed particles. |
| Bulk density | Tap density measurement | Determines mass per unit volume after standardized mechanical tapping of a known powder mass in a graduated cylinder. |
| Loss on drying | Thermogravimetric analysis (TGA) | Quantifies volatile content by measuring mass loss upon heating to 105 C under controlled atmosphere. |
| Organic impurities | HPLC-UV | Separates and quantifies organic contaminants using reversed-phase chromatography and UV absorbance detection at 210-254 nm. |
Technical Specifications of DIRECT BLACK 22
| Test Item | Specification |
|---|---|
| Appearance | Light yellow crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Melting Point | 228-232°C |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of DIRECT BLACK 22
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of DIRECT BLACK 22
Industrial DIRECT BLACK 22 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply